764563712 has 72 divisors (see below), whose sum is σ = 1762925472. Its totient is φ = 327065600.

The previous prime is 764563697. The next prime is 764563721. The reversal of 764563712 is 217365467.

It is a self number, because there is not a number n which added to its sum of digits gives 764563712.

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, 39887 + ... + 55857.

It is an arithmetic number, because the mean of its divisors is an integer number (24485076).

Almost surely, 2^764563712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 764563712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881462736).

764563712 is an abundant number, since it is smaller than the sum of its proper divisors (998361760).

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

764563712 is a wasteful number, since it uses less digits than its factorization.

764563712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16015 (or 16001 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 764563712 is about 27650.7452340800. The cubic root of 764563712 is about 914.4035297580.

The spelling of 764563712 in words is "seven hundred sixty-four million, five hundred sixty-three thousand, seven hundred twelve".