13217072 has 30 divisors (see below), whose sum is σ = 28151844. Its totient is φ = 6006880.

The previous prime is 13217033. The next prime is 13217089. The reversal of 13217072 is 27071231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1478 + ... + 5349.

Almost surely, 2^13217072 is an apocalyptic number.

It is an amenable number.

13217072 is an abundant number, since it is smaller than the sum of its proper divisors (14934772).

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

13217072 is a wasteful number, since it uses less digits than its factorization.

13217072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6857 (or 6840 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 13217072 is about 3635.5291224250. The cubic root of 13217072 is about 236.4349920478.

The spelling of 13217072 in words is "thirteen million, two hundred seventeen thousand, seventy-two".