172257796 has 24 divisors (see below), whose sum is σ = 312480000. Its totient is φ = 82989984.

The previous prime is 172257779. The next prime is 172257797. The reversal of 172257796 is 697752271.

It is not an unprimeable number, because it can be changed into a prime (172257797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70605 + ... + 73003.

It is an arithmetic number, because the mean of its divisors is an integer number (13020000).

Almost surely, 2^172257796 is an apocalyptic number.

It is an amenable number.

172257796 is a deficient number, since it is larger than the sum of its proper divisors (140222204).

172257796 is a wasteful number, since it uses less digits than its factorization.

172257796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051 (or 3049 counting only the distinct ones).

The product of its digits is 370440, while the sum is 46.

The square root of 172257796 is about 13124.7017489922. The cubic root of 172257796 is about 556.4074829780.

The spelling of 172257796 in words is "one hundred seventy-two million, two hundred fifty-seven thousand, seven hundred ninety-six".