172664004 has 12 divisors (see below), whose sum is σ = 402882704. Its totient is φ = 57554664.

The previous prime is 172664003. The next prime is 172664069. The reversal of 172664004 is 400466271.

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

It is not an unprimeable number, because it can be changed into a prime (172664003) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7194322 + ... + 7194345.

Almost surely, 2^172664004 is an apocalyptic number.

It is an amenable number.

172664004 is an abundant number, since it is smaller than the sum of its proper divisors (230218700).

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

172664004 is a wasteful number, since it uses less digits than its factorization.

172664004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14388674 (or 14388672 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 172664004 is about 13140.1675788401. The cubic root of 172664004 is about 556.8445018889.

The spelling of 172664004 in words is "one hundred seventy-two million, six hundred sixty-four thousand, four".