78713688 has 16 divisors (see below), whose sum is σ = 196784280. Its totient is φ = 26237888.

The previous prime is 78713671. The next prime is 78713717. The reversal of 78713688 is 88631787.

It is a super-2 number, since 2×78713688² = 12391689357122688, which contains 22 as substring.

It is a congruent number.

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, 1639845 + ... + 1639892.

Almost surely, 2^78713688 is an apocalyptic number.

It is an amenable number.

78713688 is an abundant number, since it is smaller than the sum of its proper divisors (118070592).

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

78713688 is a wasteful number, since it uses less digits than its factorization.

78713688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279746 (or 3279742 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 78713688 is about 8872.0734893259. The cubic root of 78713688 is about 428.5650527305.

It can be divided in two parts, 78713 and 688, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 78713688 in words is "seventy-eight million, seven hundred thirteen thousand, six hundred eighty-eight".