13868629 has 4 divisors (see below), whose sum is σ = 13884640. Its totient is φ = 13852620.

The previous prime is 13868627. The next prime is 13868633. The reversal of 13868629 is 92686831.

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: 92686831 = 5281 ⋅17551.

It is a cyclic number.

It is not a de Polignac number, because 13868629 - 2¹ = 13868627 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868623) 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, 6627 + ... + 8464.

It is an arithmetic number, because the mean of its divisors is an integer number (3471160).

Almost surely, 2^13868629 is an apocalyptic number.

It is an amenable number.

13868629 is a deficient number, since it is larger than the sum of its proper divisors (16011).

13868629 is an equidigital number, since it uses as much as digits as its factorization.

13868629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16010.

The product of its digits is 124416, while the sum is 43.

The square root of 13868629 is about 3724.0608212004. The cubic root of 13868629 is about 240.2579922432.

The spelling of 13868629 in words is "thirteen million, eight hundred sixty-eight thousand, six hundred twenty-nine".