13977629 has 4 divisors (see below), whose sum is σ = 14585376. Its totient is φ = 13369884.

The previous prime is 13977619. The next prime is 13977643. The reversal of 13977629 is 92677931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92677931 = 17 ⋅5451643.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13977629 is a prime.

It is a super-2 number, since 2×13977629² = 390748224923282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13977629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13977619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303839 + ... + 303884.

It is an arithmetic number, because the mean of its divisors is an integer number (3646344).

Almost surely, 2^13977629 is an apocalyptic number.

It is an amenable number.

13977629 is a deficient number, since it is larger than the sum of its proper divisors (607747).

13977629 is an equidigital number, since it uses as much as digits as its factorization.

13977629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607746.

The product of its digits is 142884, while the sum is 44.

The square root of 13977629 is about 3738.6667409653. Note that the first 3 decimals coincide. The cubic root of 13977629 is about 240.8857834728.

It can be divided in two parts, 139776 and 29, that multiplied together give a palindrome (4053504).

The spelling of 13977629 in words is "thirteen million, nine hundred seventy-seven thousand, six hundred twenty-nine".