13629977 has 4 divisors (see below), whose sum is σ = 13666320. Its totient is φ = 13593636.

The previous prime is 13629929. The next prime is 13629989. The reversal of 13629977 is 77992631.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13629977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13629907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17603 + ... + 18360.

It is an arithmetic number, because the mean of its divisors is an integer number (3416580).

Almost surely, 2^13629977 is an apocalyptic number.

It is an amenable number.

13629977 is a deficient number, since it is larger than the sum of its proper divisors (36343).

13629977 is an equidigital number, since it uses as much as digits as its factorization.

13629977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36342.

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

The square root of 13629977 is about 3691.8798734520. The cubic root of 13629977 is about 238.8718873624.

The spelling of 13629977 in words is "thirteen million, six hundred twenty-nine thousand, nine hundred seventy-seven".