573172164 has 72 divisors (see below), whose sum is σ = 1528712640. Its totient is φ = 180574272.

The previous prime is 573172151. The next prime is 573172181. The reversal of 573172164 is 461271375.

It is a happy number.

573172164 is a `hidden beast` number, since 573 + 1 + 7 + 21 + 64 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418609 + ... + 419975.

It is an arithmetic number, because the mean of its divisors is an integer number (21232120).

Almost surely, 2^573172164 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 573172164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764356320).

573172164 is an abundant number, since it is smaller than the sum of its proper divisors (955540476).

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

573172164 is a wasteful number, since it uses less digits than its factorization.

573172164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009 (or 2004 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 573172164 is about 23941.0142642287. The cubic root of 573172164 is about 830.6696893477.

The spelling of 573172164 in words is "five hundred seventy-three million, one hundred seventy-two thousand, one hundred sixty-four".