712120872 has 32 divisors (see below), whose sum is σ = 1780994880. Its totient is φ = 237281280.

The previous prime is 712120861. The next prime is 712120901. The reversal of 712120872 is 278021217.

It is a happy number.

It is a super-2 number, since 2×712120872² = 1014232272676080768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88872 + ... + 96552.

It is an arithmetic number, because the mean of its divisors is an integer number (55656090).

Almost surely, 2^712120872 is an apocalyptic number.

It is an amenable number.

712120872 is an abundant number, since it is smaller than the sum of its proper divisors (1068874008).

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

712120872 is a wasteful number, since it uses less digits than its factorization.

712120872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11553 (or 11549 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 712120872 is about 26685.5929669925. The cubic root of 712120872 is about 892.9995464702. Note that the first 3 decimals are identical.

The spelling of 712120872 in words is "seven hundred twelve million, one hundred twenty thousand, eight hundred seventy-two".