78712808 has 16 divisors (see below), whose sum is σ = 154003680. Its totient is φ = 37645168.

The previous prime is 78712807. The next prime is 78712811. The reversal of 78712808 is 80821787.

It is a super-2 number, since 2×78712808² = 12391412286489728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78712807) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 213710 + ... + 214077.

It is an arithmetic number, because the mean of its divisors is an integer number (9625230).

Almost surely, 2^78712808 is an apocalyptic number.

It is an amenable number.

78712808 is a deficient number, since it is larger than the sum of its proper divisors (75290872).

78712808 is a wasteful number, since it uses less digits than its factorization.

78712808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427816 (or 427812 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 41.

The square root of 78712808 is about 8872.0238953691. The cubic root of 78712808 is about 428.5634556400.

The spelling of 78712808 in words is "seventy-eight million, seven hundred twelve thousand, eight hundred eight".