78083808 has 48 divisors (see below), whose sum is σ = 223606656. Its totient is φ = 23661440.

The previous prime is 78083777. The next prime is 78083809. The reversal of 78083808 is 80838087.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 78083808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78083809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35916 + ... + 38027.

It is an arithmetic number, because the mean of its divisors is an integer number (4658472).

Almost surely, 2^78083808 is an apocalyptic number.

It is an amenable number.

78083808 is an abundant number, since it is smaller than the sum of its proper divisors (145522848).

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

78083808 is a wasteful number, since it uses less digits than its factorization.

78083808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73967 (or 73959 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 78083808 is about 8836.5042861982. The cubic root of 78083808 is about 427.4188403093.

The spelling of 78083808 in words is "seventy-eight million, eighty-three thousand, eight hundred eight".