13657369 has 4 divisors (see below), whose sum is σ = 14898960. Its totient is φ = 12415780.

The previous prime is 13657367. The next prime is 13657381. The reversal of 13657369 is 96375631.

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 not a de Polignac number, because 13657369 - 2¹ = 13657367 is a prime.

It is a super-2 number, since 2×13657369² = 373047456004322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13657363) 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, 620779 + ... + 620800.

It is an arithmetic number, because the mean of its divisors is an integer number (3724740).

Almost surely, 2^13657369 is an apocalyptic number.

It is an amenable number.

13657369 is a deficient number, since it is larger than the sum of its proper divisors (1241591).

13657369 is a wasteful number, since it uses less digits than its factorization.

13657369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241590.

The product of its digits is 102060, while the sum is 40.

The square root of 13657369 is about 3695.5877746307. The cubic root of 13657369 is about 239.0317996004.

The spelling of 13657369 in words is "thirteen million, six hundred fifty-seven thousand, three hundred sixty-nine".