78770768 has 20 divisors (see below), whose sum is σ = 159254688. Its totient is φ = 37672800.

The previous prime is 78770759. The next prime is 78770777. The reversal of 78770768 is 86707787.

It is an interprime number because it is at equal distance from previous prime (78770759) and next prime (78770777).

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, 106658 + ... + 107393.

Almost surely, 2^78770768 is an apocalyptic number.

It is an amenable number.

78770768 is an abundant number, since it is smaller than the sum of its proper divisors (80483920).

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

78770768 is a wasteful number, since it uses less digits than its factorization.

78770768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214082 (or 214076 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 50.

The square root of 78770768 is about 8875.2897417493. The cubic root of 78770768 is about 428.6686204121.

The spelling of 78770768 in words is "seventy-eight million, seven hundred seventy thousand, seven hundred sixty-eight".