172873332 has 48 divisors (see below), whose sum is σ = 457739520. Its totient is φ = 56396736.

The previous prime is 172873307. The next prime is 172873403. The reversal of 172873332 is 233378271.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11953 + ... + 22104.

It is an arithmetic number, because the mean of its divisors is an integer number (9536240).

Almost surely, 2^172873332 is an apocalyptic number.

172873332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172873332 is an abundant number, since it is smaller than the sum of its proper divisors (284866188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172873332 is a wasteful number, since it uses less digits than its factorization.

172873332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34117 (or 34109 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 172873332 is about 13148.1303613860. The cubic root of 172873332 is about 557.0694398610.

The spelling of 172873332 in words is "one hundred seventy-two million, eight hundred seventy-three thousand, three hundred thirty-two".