13603964 has 24 divisors (see below), whose sum is σ = 26608176. Its totient is φ = 6032000.

The previous prime is 13603937. The next prime is 13603969. The reversal of 13603964 is 46930631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13603964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13603969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1967 + ... + 5574.

It is an arithmetic number, because the mean of its divisors is an integer number (1108674).

Almost surely, 2^13603964 is an apocalyptic number.

It is an amenable number.

13603964 is a deficient number, since it is larger than the sum of its proper divisors (13004212).

13603964 is a wasteful number, since it uses less digits than its factorization.

13603964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7597 (or 7595 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 13603964 is about 3688.3551889697. The cubic root of 13603964 is about 238.7198271492.

The spelling of 13603964 in words is "thirteen million, six hundred three thousand, nine hundred sixty-four".