13633972 has 24 divisors (see below), whose sum is σ = 26201952. Its totient is φ = 6156000.

The previous prime is 13633943. The next prime is 13633979. The reversal of 13633972 is 27933631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13633979) 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, 6222 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (1091748).

Almost surely, 2^13633972 is an apocalyptic number.

It is an amenable number.

13633972 is a deficient number, since it is larger than the sum of its proper divisors (12567980).

13633972 is a wasteful number, since it uses less digits than its factorization.

13633972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079 (or 2077 counting only the distinct ones).

The product of its digits is 20412, while the sum is 34.

The square root of 13633972 is about 3692.4208860854. The cubic root of 13633972 is about 238.8952231800.

It can be divided in two parts, 1363 and 3972, that added together give a palindrome (5335).

The spelling of 13633972 in words is "thirteen million, six hundred thirty-three thousand, nine hundred seventy-two".