172004067 has 20 divisors (see below), whose sum is σ = 262417056. Its totient is φ = 112227120.

The previous prime is 172004059. The next prime is 172004087. The reversal of 172004067 is 760400271.

It is not a de Polignac number, because 172004067 - 2³ = 172004059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 172004067.

It is not an unprimeable number, because it can be changed into a prime (172004047) 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 19 ways as a sum of consecutive naturals, for example, 18784 + ... + 26397.

Almost surely, 2^172004067 is an apocalyptic number.

172004067 is a deficient number, since it is larger than the sum of its proper divisors (90412989).

172004067 is an equidigital number, since it uses as much as digits as its factorization.

172004067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45240 (or 45231 counting only the distinct ones).

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

The square root of 172004067 is about 13115.0321006088. The cubic root of 172004067 is about 556.1341599118.

The spelling of 172004067 in words is "one hundred seventy-two million, four thousand, sixty-seven".