172479012 has 12 divisors (see below), whose sum is σ = 402451056. Its totient is φ = 57493000.

The previous prime is 172478993. The next prime is 172479023. The reversal of 172479012 is 210974271.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×172479012² = 59498019160992288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7186614 + ... + 7186637.

It is an arithmetic number, because the mean of its divisors is an integer number (33537588).

Almost surely, 2^172479012 is an apocalyptic number.

172479012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172479012 is an abundant number, since it is smaller than the sum of its proper divisors (229972044).

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

172479012 is a wasteful number, since it uses less digits than its factorization.

172479012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14373258 (or 14373256 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 172479012 is about 13133.1265127539. The cubic root of 172479012 is about 556.6455633212.

The spelling of 172479012 in words is "one hundred seventy-two million, four hundred seventy-nine thousand, twelve".