172712984 has 8 divisors (see below), whose sum is σ = 323836860. Its totient is φ = 86356488.

The previous prime is 172712977. The next prime is 172712999. The reversal of 172712984 is 489217271.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10794554 + ... + 10794569.

Almost surely, 2^172712984 is an apocalyptic number.

It is an amenable number.

172712984 is a deficient number, since it is larger than the sum of its proper divisors (151123876).

172712984 is a wasteful number, since it uses less digits than its factorization.

172712984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21589129 (or 21589125 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 172712984 is about 13142.0311976498. The cubic root of 172712984 is about 556.8971507029.

The spelling of 172712984 in words is "one hundred seventy-two million, seven hundred twelve thousand, nine hundred eighty-four".