715731372 has 18 divisors (see below), whose sum is σ = 1809209948. Its totient is φ = 238577112.

The previous prime is 715731371. The next prime is 715731391. The reversal of 715731372 is 273137517.

715731372 is a `hidden beast` number, since 7 + 1 + 573 + 13 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 19881427 = 715731372 / (7 + 1 + 5 + 7 + 3 + 1 + 3 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (715731371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9940678 + ... + 9940749.

Almost surely, 2^715731372 is an apocalyptic number.

It is an amenable number.

715731372 is an abundant number, since it is smaller than the sum of its proper divisors (1093478576).

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

715731372 is a wasteful number, since it uses less digits than its factorization.

715731372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19881437 (or 19881432 counting only the distinct ones).

The product of its digits is 30870, while the sum is 36.

The square root of 715731372 is about 26753.1562997714. The cubic root of 715731372 is about 894.5061920219.

Adding to 715731372 its reverse (273137517), we get a palindrome (988868889).

The spelling of 715731372 in words is "seven hundred fifteen million, seven hundred thirty-one thousand, three hundred seventy-two".