172775488 has 56 divisors (see below), whose sum is σ = 364845600. Its totient is φ = 80898048.

The previous prime is 172775479. The next prime is 172775489. The reversal of 172775488 is 884577271.

It is not an unprimeable number, because it can be changed into a prime (172775489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412143 + ... + 412561.

It is an arithmetic number, because the mean of its divisors is an integer number (6515100).

Almost surely, 2^172775488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172775488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182422800).

172775488 is an abundant number, since it is smaller than the sum of its proper divisors (192070112).

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

172775488 is a wasteful number, since it uses less digits than its factorization.

172775488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 817 counting only the distinct ones).

The product of its digits is 878080, while the sum is 49.

The square root of 172775488 is about 13144.4090015489. The cubic root of 172775488 is about 556.9643220693.

The spelling of 172775488 in words is "one hundred seventy-two million, seven hundred seventy-five thousand, four hundred eighty-eight".