167604089 has 2 divisors, whose sum is σ = 167604090. Its totient is φ = 167604088.

The previous prime is 167604061. The next prime is 167604097. The reversal of 167604089 is 980406761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101344489 + 66259600 = 10067^2 + 8140^2 .

It is a cyclic number.

It is not a de Polignac number, because 167604089 - 2²⁰ = 166555513 is a prime.

It is a super-2 number, since 2×167604089² = 56182261299039842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (167604049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83802044 + 83802045.

It is an arithmetic number, because the mean of its divisors is an integer number (83802045).

Almost surely, 2^167604089 is an apocalyptic number.

It is an amenable number.

167604089 is a deficient number, since it is larger than the sum of its proper divisors (1).

167604089 is an equidigital number, since it uses as much as digits as its factorization.

167604089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 167604089 is about 12946.1997898997. The cubic root of 167604089 is about 551.3510465506.

The spelling of 167604089 in words is "one hundred sixty-seven million, six hundred four thousand, eighty-nine".