712831861 has 16 divisors (see below), whose sum is σ = 859968000. Its totient is φ = 589921584.

The previous prime is 712831849. The next prime is 712831871. The reversal of 712831861 is 168138217.

It is not a de Polignac number, because 712831861 - 2¹⁵ = 712799093 is a prime.

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 712831861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712831831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25885 + ... + 45778.

It is an arithmetic number, because the mean of its divisors is an integer number (53748000).

Almost surely, 2^712831861 is an apocalyptic number.

It is an amenable number.

712831861 is a deficient number, since it is larger than the sum of its proper divisors (147136139).

712831861 is an equidigital number, since it uses as much as digits as its factorization.

712831861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71713 (or 71699 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 712831861 is about 26698.9112324829. The cubic root of 712831861 is about 893.2966410111.

The spelling of 712831861 in words is "seven hundred twelve million, eight hundred thirty-one thousand, eight hundred sixty-one".