712701631 has 4 divisors (see below), whose sum is σ = 712785064. Its totient is φ = 712618200.

The previous prime is 712701629. The next prime is 712701637. The reversal of 712701631 is 136107217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 712701631 - 2¹ = 712701629 is a prime.

It is a super-2 number, since 2×712701631² = 1015887229660120322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 712701631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712701637) 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, 27225 + ... + 46546.

It is an arithmetic number, because the mean of its divisors is an integer number (178196266).

Almost surely, 2^712701631 is an apocalyptic number.

712701631 is a deficient number, since it is larger than the sum of its proper divisors (83433).

712701631 is an equidigital number, since it uses as much as digits as its factorization.

712701631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83432.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 712701631 is about 26696.4722575849. The cubic root of 712701631 is about 893.2422377625.

Adding to 712701631 its reverse (136107217), we get a palindrome (848808848).

The spelling of 712701631 in words is "seven hundred twelve million, seven hundred one thousand, six hundred thirty-one".