172717296 has 80 divisors (see below), whose sum is σ = 472291200. Its totient is φ = 54238464.

The previous prime is 172717253. The next prime is 172717313. The reversal of 172717296 is 692717271.

172717296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208435 + ... + 209261.

It is an arithmetic number, because the mean of its divisors is an integer number (5903640).

Almost surely, 2^172717296 is an apocalyptic number.

172717296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172717296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236145600).

172717296 is an abundant number, since it is smaller than the sum of its proper divisors (299573904).

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

172717296 is a wasteful number, since it uses less digits than its factorization.

172717296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1080 counting only the distinct ones).

The product of its digits is 74088, while the sum is 42.

The square root of 172717296 is about 13142.1952504138. The cubic root of 172717296 is about 556.9017852136.

The spelling of 172717296 in words is "one hundred seventy-two million, seven hundred seventeen thousand, two hundred ninety-six".