637117472 has 48 divisors (see below), whose sum is σ = 1317072960. Its totient is φ = 302953728.

The previous prime is 637117441. The next prime is 637117529. The reversal of 637117472 is 274711736.

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 7 ways as a sum of consecutive naturals, for example, 57053 + ... + 67299.

It is an arithmetic number, because the mean of its divisors is an integer number (27439020).

Almost surely, 2^637117472 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 637117472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658536480).

637117472 is an abundant number, since it is smaller than the sum of its proper divisors (679955488).

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

637117472 is a wasteful number, since it uses less digits than its factorization.

637117472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10353 (or 10345 counting only the distinct ones).

The product of its digits is 49392, while the sum is 38.

The square root of 637117472 is about 25241.1860260171. The cubic root of 637117472 is about 860.4781332582.

The spelling of 637117472 in words is "six hundred thirty-seven million, one hundred seventeen thousand, four hundred seventy-two".