13640696 has 16 divisors (see below), whose sum is σ = 25812600. Its totient is φ = 6757344.

The previous prime is 13640677. The next prime is 13640699. The reversal of 13640696 is 69604631.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13640699) 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, 6950 + ... + 8693.

Almost surely, 2^13640696 is an apocalyptic number.

It is an amenable number.

13640696 is a deficient number, since it is larger than the sum of its proper divisors (12171904).

13640696 is a wasteful number, since it uses less digits than its factorization.

13640696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15758 (or 15754 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 13640696 is about 3693.3312876047. The cubic root of 13640696 is about 238.9344894941.

The spelling of 13640696 in words is "thirteen million, six hundred forty thousand, six hundred ninety-six".