17072172 has 36 divisors (see below), whose sum is σ = 46475520. Its totient is φ = 5252832.

The previous prime is 17072123. The next prime is 17072173. The reversal of 17072172 is 27127071.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (17072173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17772 + ... + 18707.

Almost surely, 2^17072172 is an apocalyptic number.

17072172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17072172 is an abundant number, since it is smaller than the sum of its proper divisors (29403348).

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

17072172 is a wasteful number, since it uses less digits than its factorization.

17072172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36502 (or 36497 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 17072172 is about 4131.8484967385. The cubic root of 17072172 is about 257.4915169858.

The spelling of 17072172 in words is "seventeen million, seventy-two thousand, one hundred seventy-two".