172725696 has 280 divisors, whose sum is σ = 604107504. Its totient is φ = 48107520.

The previous prime is 172725677. The next prime is 172725701. The reversal of 172725696 is 696527271.

172725696 is a `hidden beast` number, since 17 + 2 + 72 + 569 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 741196 + ... + 741428.

Almost surely, 2^172725696 is an apocalyptic number.

172725696 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 172725696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302053752).

172725696 is an abundant number, since it is smaller than the sum of its proper divisors (431381808).

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

172725696 is a wasteful number, since it uses less digits than its factorization.

172725696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 262 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 172725696 is about 13142.5148278402. The cubic root of 172725696 is about 556.9108132598.

The spelling of 172725696 in words is "one hundred seventy-two million, seven hundred twenty-five thousand, six hundred ninety-six".