172799992 has 16 divisors (see below), whose sum is σ = 325699200. Its totient is φ = 85946880.

The previous prime is 172799987. The next prime is 172799993. The reversal of 172799992 is 299997271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172799993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55017 + ... + 58072.

It is an arithmetic number, because the mean of its divisors is an integer number (20356200).

Almost surely, 2^172799992 is an apocalyptic number.

It is an amenable number.

172799992 is a deficient number, since it is larger than the sum of its proper divisors (152899208).

172799992 is a wasteful number, since it uses less digits than its factorization.

172799992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113286 (or 113282 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 55.

The square root of 172799992 is about 13145.3410758337. The cubic root of 172799992 is about 556.9906514380.

The spelling of 172799992 in words is "one hundred seventy-two million, seven hundred ninety-nine thousand, nine hundred ninety-two".