712776840 has 32 divisors (see below), whose sum is σ = 2138330880. Its totient is φ = 190073792.

The previous prime is 712776821. The next prime is 712776851. The reversal of 712776840 is 48677217.

It is a junction number, because it is equal to n+sod(n) for n = 712776792 and 712776801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2969784 + ... + 2970023.

It is an arithmetic number, because the mean of its divisors is an integer number (66822840).

Almost surely, 2^712776840 is an apocalyptic number.

It is an amenable number.

712776840 is an abundant number, since it is smaller than the sum of its proper divisors (1425554040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712776840 is a wasteful number, since it uses less digits than its factorization.

712776840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939821 (or 5939817 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 42.

The square root of 712776840 is about 26697.8808147763. The cubic root of 712776840 is about 893.2736569378.

The spelling of 712776840 in words is "seven hundred twelve million, seven hundred seventy-six thousand, eight hundred forty".