78685088 has 24 divisors (see below), whose sum is σ = 159100452. Its totient is φ = 38278656.

The previous prime is 78685073. The next prime is 78685127. The reversal of 78685088 is 88058687.

It can be written as a sum of positive squares in 2 ways, for example, as 78357904 + 327184 = 8852^2 + 572^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32045 + ... + 34412.

Almost surely, 2^78685088 is an apocalyptic number.

It is an amenable number.

78685088 is an abundant number, since it is smaller than the sum of its proper divisors (80415364).

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

78685088 is a wasteful number, since it uses less digits than its factorization.

78685088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66504 (or 66496 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 50.

The square root of 78685088 is about 8870.4615437980. The cubic root of 78685088 is about 428.5131411947.

The spelling of 78685088 in words is "seventy-eight million, six hundred eighty-five thousand, eighty-eight".