782864972 has 12 divisors (see below), whose sum is σ = 1392473376. Its totient is φ = 385015440.

The previous prime is 782864933. The next prime is 782864987. The reversal of 782864972 is 279468287.

It is a happy number.

It is a super-2 number, since 2×782864972² = 1225755128769121568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603988 + ... + 1604475.

It is an arithmetic number, because the mean of its divisors is an integer number (116039448).

Almost surely, 2^782864972 is an apocalyptic number.

It is an amenable number.

782864972 is a deficient number, since it is larger than the sum of its proper divisors (609608404).

782864972 is a wasteful number, since it uses less digits than its factorization.

782864972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208528 (or 3208526 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 782864972 is about 27979.7243017153. The cubic root of 782864972 is about 921.6420626936.

The spelling of 782864972 in words is "seven hundred eighty-two million, eight hundred sixty-four thousand, nine hundred seventy-two".