13623172 has 6 divisors (see below), whose sum is σ = 23840558. Its totient is φ = 6811584.

The previous prime is 13623149. The next prime is 13623179. The reversal of 13623172 is 27132631.

It can be written as a sum of positive squares in only one way, i.e., 12787776 + 835396 = 3576^2 + 914^2 .

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (13623179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702893 + ... + 1702900.

Almost surely, 2^13623172 is an apocalyptic number.

It is an amenable number.

13623172 is a deficient number, since it is larger than the sum of its proper divisors (10217386).

13623172 is a wasteful number, since it uses less digits than its factorization.

13623172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405797 (or 3405795 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 13623172 is about 3690.9581411877. The cubic root of 13623172 is about 238.8321271146.

The spelling of 13623172 in words is "thirteen million, six hundred twenty-three thousand, one hundred seventy-two".