172070089 has 2 divisors, whose sum is σ = 172070090. Its totient is φ = 172070088.

The previous prime is 172070053. The next prime is 172070113. The reversal of 172070089 is 980070271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172055689 + 14400 = 13117^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 172070089 - 2²⁷ = 37852361 is a prime.

It is not a weakly prime, because it can be changed into another prime (172070009) 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 as a sum of consecutive naturals, namely, 86035044 + 86035045.

It is an arithmetic number, because the mean of its divisors is an integer number (86035045).

Almost surely, 2^172070089 is an apocalyptic number.

It is an amenable number.

172070089 is a deficient number, since it is larger than the sum of its proper divisors (1).

172070089 is an equidigital number, since it uses as much as digits as its factorization.

172070089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 172070089 is about 13117.5488945153. The cubic root of 172070089 is about 556.2053062773.

The spelling of 172070089 in words is "one hundred seventy-two million, seventy thousand, eighty-nine".