712715681 has 8 divisors (see below), whose sum is σ = 715427328. Its totient is φ = 710010000.

The previous prime is 712715659. The next prime is 712715779. The reversal of 712715681 is 186517217.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 712715681 - 2⁶ = 712715617 is a prime.

It is a super-2 number, since 2×712715681² = 1015927283886587522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712715581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483776 + ... + 485246.

It is an arithmetic number, because the mean of its divisors is an integer number (89428416).

Almost surely, 2^712715681 is an apocalyptic number.

It is an amenable number.

712715681 is a deficient number, since it is larger than the sum of its proper divisors (2711647).

712715681 is a wasteful number, since it uses less digits than its factorization.

712715681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its digits is 23520, while the sum is 38.

The square root of 712715681 is about 26696.7353996701. The cubic root of 712715681 is about 893.2481074329.

The spelling of 712715681 in words is "seven hundred twelve million, seven hundred fifteen thousand, six hundred eighty-one".