172791248 has 60 divisors (see below), whose sum is σ = 391107780. Its totient is φ = 73737216.

The previous prime is 172791167. The next prime is 172791253. The reversal of 172791248 is 842197271.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 95491984 = 8792^2 + 9772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339218 + ... + 339726.

It is an arithmetic number, because the mean of its divisors is an integer number (6518463).

Almost surely, 2^172791248 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 172791248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195553890).

172791248 is an abundant number, since it is smaller than the sum of its proper divisors (218316532).

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

172791248 is a wasteful number, since it uses less digits than its factorization.

172791248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 951 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 172791248 is about 13145.0084823099. The cubic root of 172791248 is about 556.9812563596.

The spelling of 172791248 in words is "one hundred seventy-two million, seven hundred ninety-one thousand, two hundred forty-eight".