78055808 has 32 divisors (see below), whose sum is σ = 156009000. Its totient is φ = 38900736.

The previous prime is 78055801. The next prime is 78055811. The reversal of 78055808 is 80855087.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78055801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47708 + ... + 49316.

Almost surely, 2^78055808 is an apocalyptic number.

It is an amenable number.

78055808 is a deficient number, since it is larger than the sum of its proper divisors (77953192).

78055808 is a wasteful number, since it uses less digits than its factorization.

78055808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 41.

The square root of 78055808 is about 8834.9198072195. The cubic root of 78055808 is about 427.3677449601.

The spelling of 78055808 in words is "seventy-eight million, fifty-five thousand, eight hundred eight".