172488927 has 16 divisors (see below), whose sum is σ = 253719648. Its totient is φ = 103557120.

The previous prime is 172488923. The next prime is 172488941. The reversal of 172488927 is 729884271.

It is not a de Polignac number, because 172488927 - 2² = 172488923 is a prime.

It is a super-2 number, since 2×172488927² = 59504859875222658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172488923) 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, 52338 + ... + 55535.

It is an arithmetic number, because the mean of its divisors is an integer number (15857478).

Almost surely, 2^172488927 is an apocalyptic number.

172488927 is a deficient number, since it is larger than the sum of its proper divisors (81230721).

172488927 is a wasteful number, since it uses less digits than its factorization.

172488927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107930.

The product of its digits is 451584, while the sum is 48.

The square root of 172488927 is about 13133.5039878929. The cubic root of 172488927 is about 556.6562294209.

The spelling of 172488927 in words is "one hundred seventy-two million, four hundred eighty-eight thousand, nine hundred twenty-seven".