712878766 has 16 divisors (see below), whose sum is σ = 1085927040. Its totient is φ = 350917560.

The previous prime is 712878743. The next prime is 712878791. The reversal of 712878766 is 667878217.

It is a super-2 number, since 2×712878766² = 1016392270027365512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108565 + ... + 114943.

It is an arithmetic number, because the mean of its divisors is an integer number (67870440).

Almost surely, 2^712878766 is an apocalyptic number.

712878766 is a deficient number, since it is larger than the sum of its proper divisors (373048274).

712878766 is a wasteful number, since it uses less digits than its factorization.

712878766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7239.

The product of its digits is 1580544, while the sum is 52.

The square root of 712878766 is about 26699.7896246394. The cubic root of 712878766 is about 893.3162338315.

The spelling of 712878766 in words is "seven hundred twelve million, eight hundred seventy-eight thousand, seven hundred sixty-six".