78616688 has 10 divisors (see below), whose sum is σ = 152319864. Its totient is φ = 39308336.

The previous prime is 78616679. The next prime is 78616697. The reversal of 78616688 is 88661687.

It is an interprime number because it is at equal distance from previous prime (78616679) and next prime (78616697).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2456756 + ... + 2456787.

Almost surely, 2^78616688 is an apocalyptic number.

It is an amenable number.

78616688 is a deficient number, since it is larger than the sum of its proper divisors (73703176).

78616688 is a wasteful number, since it uses less digits than its factorization.

78616688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913551 (or 4913545 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 78616688 is about 8866.6052128196. The cubic root of 78616688 is about 428.3889380929.

The spelling of 78616688 in words is "seventy-eight million, six hundred sixteen thousand, six hundred eighty-eight".