78710256 has 30 divisors (see below), whose sum is σ = 220279800. Its totient is φ = 26236704.

The previous prime is 78710251. The next prime is 78710257. The reversal of 78710256 is 65201787.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 78710256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78710251) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 273156 + ... + 273443.

It is an arithmetic number, because the mean of its divisors is an integer number (7342660).

Almost surely, 2^78710256 is an apocalyptic number.

It is an amenable number.

78710256 is an abundant number, since it is smaller than the sum of its proper divisors (141569544).

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

78710256 is a wasteful number, since it uses less digits than its factorization.

78710256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546613 (or 546604 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 78710256 is about 8871.8800713265. The cubic root of 78710256 is about 428.5588240102.

The spelling of 78710256 in words is "seventy-eight million, seven hundred ten thousand, two hundred fifty-six".