712678916 has 24 divisors (see below), whose sum is σ = 1275545880. Its totient is φ = 348288512.

The previous prime is 712678903. The next prime is 712678937. The reversal of 712678916 is 619876217.

It can be written as a sum of positive squares in 4 ways, for example, as 47554816 + 665124100 = 6896^2 + 25790^2 .

It is a super-2 number, since 2×712678916² = 1015822474621870112, which contains 22 as substring.

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, 50780 + ... + 63276.

It is an arithmetic number, because the mean of its divisors is an integer number (53147745).

Almost surely, 2^712678916 is an apocalyptic number.

It is an amenable number.

712678916 is a deficient number, since it is larger than the sum of its proper divisors (562866964).

712678916 is a wasteful number, since it uses less digits than its factorization.

712678916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823 (or 12821 counting only the distinct ones).

The product of its digits is 254016, while the sum is 47.

The square root of 712678916 is about 26696.0468234531. The cubic root of 712678916 is about 893.2327479507.

The spelling of 712678916 in words is "seven hundred twelve million, six hundred seventy-eight thousand, nine hundred sixteen".