768817492 has 12 divisors (see below), whose sum is σ = 1391824980. Its totient is φ = 371153216.

The previous prime is 768817477. The next prime is 768817507. The reversal of 768817492 is 294718867.

It is an interprime number because it is at equal distance from previous prime (768817477) and next prime (768817507).

It can be written as a sum of positive squares in 2 ways, for example, as 204089796 + 564727696 = 14286^2 + 23764^2 .

It is a congruent number.

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, 3313753 + ... + 3313984.

It is an arithmetic number, because the mean of its divisors is an integer number (115985415).

Almost surely, 2^768817492 is an apocalyptic number.

It is an amenable number.

768817492 is a deficient number, since it is larger than the sum of its proper divisors (623007488).

768817492 is a wasteful number, since it uses less digits than its factorization.

768817492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627770 (or 6627768 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 768817492 is about 27727.5583490505. The cubic root of 768817492 is about 916.0962075491.

The spelling of 768817492 in words is "seven hundred sixty-eight million, eight hundred seventeen thousand, four hundred ninety-two".