172296387396 has 81 divisors (see below), whose sum is σ = 506684693151. Its totient is φ = 49222558224.

The previous prime is 172296387301. The next prime is 172296387437. The reversal of 172296387396 is 693783692271.

The square root of 172296387396 is 415086.

It is a perfect power (a square), and thus also a powerful number.

172296387396 is a `hidden beast` number, since 17 + 229 + 6 + 3 + 8 + 7 + 396 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17428671 + ... + 17438553.

Almost surely, 2^172296387396 is an apocalyptic number.

172296387396 is the 415086-th square number.

It is an amenable number.

172296387396 is an abundant number, since it is smaller than the sum of its proper divisors (334388305755).

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

172296387396 is an frugal number, since it uses more digits than its factorization.

172296387396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19790 (or 9895 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 63.

The spelling of 172296387396 in words is "one hundred seventy-two billion, two hundred ninety-six million, three hundred eighty-seven thousand, three hundred ninety-six".