172572998 has 24 divisors (see below), whose sum is σ = 283081968. Its totient is φ = 78859872.

The previous prime is 172572971. The next prime is 172573007. The reversal of 172572998 is 899275271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32336 + ... + 37292.

It is an arithmetic number, because the mean of its divisors is an integer number (11795082).

Almost surely, 2^172572998 is an apocalyptic number.

172572998 is a deficient number, since it is larger than the sum of its proper divisors (110508970).

172572998 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (172572997) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (5075).

172572998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088 (or 5075 counting only the distinct ones).

The product of its digits is 635040, while the sum is 50.

The square root of 172572998 is about 13136.7042289914. The cubic root of 172572998 is about 556.7466527030.

The spelling of 172572998 in words is "one hundred seventy-two million, five hundred seventy-two thousand, nine hundred ninety-eight".