172381696 has 20 divisors (see below), whose sum is σ = 344427732. Its totient is φ = 86190592.

The previous prime is 172381679. The next prime is 172381709. The reversal of 172381696 is 696183271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167830 + ... + 168853.

Almost surely, 2^172381696 is an apocalyptic number.

172381696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172381696 is a deficient number, since it is larger than the sum of its proper divisors (172046036).

172381696 is an frugal number, since it uses more digits than its factorization.

172381696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336701 (or 336685 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 172381696 is about 13129.4210077977. The cubic root of 172381696 is about 556.5408535554.

The spelling of 172381696 in words is "one hundred seventy-two million, three hundred eighty-one thousand, six hundred ninety-six".