17072872 has 8 divisors (see below), whose sum is σ = 32011650. Its totient is φ = 8536432.

The previous prime is 17072857. The next prime is 17072893. The reversal of 17072872 is 27827071.

It can be written as a sum of positive squares in only one way, i.e., 13883076 + 3189796 = 3726^2 + 1786^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067047 + ... + 1067062.

Almost surely, 2^17072872 is an apocalyptic number.

It is an amenable number.

17072872 is a deficient number, since it is larger than the sum of its proper divisors (14938778).

17072872 is a wasteful number, since it uses less digits than its factorization.

17072872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134115 (or 2134111 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 17072872 is about 4131.9332037195. The cubic root of 17072872 is about 257.4950361943.

The spelling of 17072872 in words is "seventeen million, seventy-two thousand, eight hundred seventy-two".