78707560 has 32 divisors (see below), whose sum is σ = 177357600. Its totient is φ = 31435840.

The previous prime is 78707549. The next prime is 78707599. The reversal of 78707560 is 6570787.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39795 + ... + 41725.

It is an arithmetic number, because the mean of its divisors is an integer number (5542425).

Almost surely, 2^78707560 is an apocalyptic number.

It is an amenable number.

78707560 is an abundant number, since it is smaller than the sum of its proper divisors (98650040).

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

78707560 is a wasteful number, since it uses less digits than its factorization.

78707560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 78707560 is about 8871.7281292880. The cubic root of 78707560 is about 428.5539309258.

The spelling of 78707560 in words is "seventy-eight million, seven hundred seven thousand, five hundred sixty".