172004076 has 18 divisors (see below), whose sum is σ = 434788172. Its totient is φ = 57334680.

The previous prime is 172004059. The next prime is 172004087. The reversal of 172004076 is 670400271.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×172004076² = 59170804321227552, which contains 22 as substring.

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 in 5 ways as a sum of consecutive naturals, for example, 2388910 + ... + 2388981.

Almost surely, 2^172004076 is an apocalyptic number.

It is an amenable number.

172004076 is an abundant number, since it is smaller than the sum of its proper divisors (262784096).

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

172004076 is a wasteful number, since it uses less digits than its factorization.

172004076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777901 (or 4777896 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 172004076 is about 13115.0324437265. The cubic root of 172004076 is about 556.1341696115.

The spelling of 172004076 in words is "one hundred seventy-two million, four thousand, seventy-six".