172089627 has 16 divisors (see below), whose sum is σ = 238506240. Its totient is φ = 110274912.

The previous prime is 172089581. The next prime is 172089629. The reversal of 172089627 is 726980271.

It is not a de Polignac number, because 172089627 - 2²⁰ = 171041051 is a prime.

It is a super-2 number, since 2×172089627² = 59229679441998258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172089629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127 + ... + 18552.

It is an arithmetic number, because the mean of its divisors is an integer number (14906640).

Almost surely, 2^172089627 is an apocalyptic number.

172089627 is a deficient number, since it is larger than the sum of its proper divisors (66416613).

172089627 is a wasteful number, since it uses less digits than its factorization.

172089627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18802.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 172089627 is about 13118.2936009223. The cubic root of 172089627 is about 556.2263572495.

The spelling of 172089627 in words is "one hundred seventy-two million, eighty-nine thousand, six hundred twenty-seven".