712772644 has 24 divisors (see below), whose sum is σ = 1278779040. Its totient is φ = 347438784.

The previous prime is 712772639. The next prime is 712772663. The reversal of 712772644 is 446277217.

It is a junction number, because it is equal to n+sod(n) for n = 712772597 and 712772606.

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, 94227 + ... + 101509.

It is an arithmetic number, because the mean of its divisors is an integer number (53282460).

Almost surely, 2^712772644 is an apocalyptic number.

It is an amenable number.

712772644 is a deficient number, since it is larger than the sum of its proper divisors (566006396).

712772644 is a wasteful number, since it uses less digits than its factorization.

712772644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899 (or 7897 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 712772644 is about 26697.8022316445. The cubic root of 712772644 is about 893.2719040827.

The spelling of 712772644 in words is "seven hundred twelve million, seven hundred seventy-two thousand, six hundred forty-four".