712405664 has 12 divisors (see below), whose sum is σ = 1402548714. Its totient is φ = 356202816.

The previous prime is 712405663. The next prime is 712405697. The reversal of 712405664 is 466504217.

It can be written as a sum of positive squares in only one way, i.e., 622003600 + 90402064 = 24940^2 + 9508^2 .

It is not an unprimeable number, because it can be changed into a prime (712405663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11131307 + ... + 11131370.

Almost surely, 2^712405664 is an apocalyptic number.

It is an amenable number.

712405664 is a deficient number, since it is larger than the sum of its proper divisors (690143050).

712405664 is a wasteful number, since it uses less digits than its factorization.

712405664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22262687 (or 22262679 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 712405664 is about 26690.9284964012. The cubic root of 712405664 is about 893.1185736569.

The spelling of 712405664 in words is "seven hundred twelve million, four hundred five thousand, six hundred sixty-four".