13604772 has 12 divisors (see below), whose sum is σ = 31744496. Its totient is φ = 4534920.

The previous prime is 13604771. The next prime is 13604783. The reversal of 13604772 is 27740631.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13604771) 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, 566854 + ... + 566877.

Almost surely, 2^13604772 is an apocalyptic number.

13604772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13604772 is an abundant number, since it is smaller than the sum of its proper divisors (18139724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13604772 is a wasteful number, since it uses less digits than its factorization.

13604772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133738 (or 1133736 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 13604772 is about 3688.4647212628. The cubic root of 13604772 is about 238.7245532668.

The spelling of 13604772 in words is "thirteen million, six hundred four thousand, seven hundred seventy-two".