13633172 has 18 divisors (see below), whose sum is σ = 27753642. Its totient is φ = 5842704.

The previous prime is 13633171. The next prime is 13633199. The reversal of 13633172 is 27133631.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 988036 = 3556^2 + 994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13633171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34583 + ... + 34974.

It is an arithmetic number, because the mean of its divisors is an integer number (1541869).

Almost surely, 2^13633172 is an apocalyptic number.

It is an amenable number.

13633172 is an abundant number, since it is smaller than the sum of its proper divisors (14120470).

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

13633172 is a wasteful number, since it uses less digits than its factorization.

13633172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69575 (or 69566 counting only the distinct ones).

The product of its digits is 2268, while the sum is 26.

The square root of 13633172 is about 3692.3125544840. The cubic root of 13633172 is about 238.8905505403.

The spelling of 13633172 in words is "thirteen million, six hundred thirty-three thousand, one hundred seventy-two".