712158740 has 12 divisors (see below), whose sum is σ = 1495533396. Its totient is φ = 284863488.

The previous prime is 712158739. The next prime is 712158749. The reversal of 712158740 is 47851217.

It can be written as a sum of positive squares in 2 ways, for example, as 295427344 + 416731396 = 17188^2 + 20414^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 712158740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712158749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17803949 + ... + 17803988.

It is an arithmetic number, because the mean of its divisors is an integer number (124627783).

Almost surely, 2^712158740 is an apocalyptic number.

It is an amenable number.

712158740 is an abundant number, since it is smaller than the sum of its proper divisors (783374656).

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

712158740 is a wasteful number, since it uses less digits than its factorization.

712158740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35607946 (or 35607944 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 712158740 is about 26686.3024789872. The cubic root of 712158740 is about 893.0153750132.

The spelling of 712158740 in words is "seven hundred twelve million, one hundred fifty-eight thousand, seven hundred forty".