78800516 has 12 divisors (see below), whose sum is σ = 137966220. Its totient is φ = 39381600.

The previous prime is 78800497. The next prime is 78800521. The reversal of 78800516 is 61500887.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36602500 + 42198016 = 6050^2 + 6496^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9866 + ... + 15966.

It is an arithmetic number, because the mean of its divisors is an integer number (11497185).

Almost surely, 2^78800516 is an apocalyptic number.

It is an amenable number.

78800516 is a deficient number, since it is larger than the sum of its proper divisors (59165704).

78800516 is a wasteful number, since it uses less digits than its factorization.

78800516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9334 (or 9332 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 78800516 is about 8876.9654725024. The cubic root of 78800516 is about 428.7225762534.

The spelling of 78800516 in words is "seventy-eight million, eight hundred thousand, five hundred sixteen".