715239972 has 18 divisors (see below), whose sum is σ = 1807967798. Its totient is φ = 238413312.

The previous prime is 715239961. The next prime is 715240003. The reversal of 715239972 is 279932517.

It can be written as a sum of positive squares in only one way, i.e., 540841536 + 174398436 = 23256^2 + 13206^2 .

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

It is a super-3 number, since 3×715239972³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9933853 + ... + 9933924.

Almost surely, 2^715239972 is an apocalyptic number.

It is an amenable number.

715239972 is an abundant number, since it is smaller than the sum of its proper divisors (1092727826).

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

715239972 is a wasteful number, since it uses less digits than its factorization.

715239972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19867787 (or 19867782 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 715239972 is about 26743.9707597806. The cubic root of 715239972 is about 894.3014313185.

The spelling of 715239972 in words is "seven hundred fifteen million, two hundred thirty-nine thousand, nine hundred seventy-two".