78702256 has 40 divisors (see below), whose sum is σ = 164872880. Its totient is φ = 36267264.

The previous prime is 78702233. The next prime is 78702263. The reversal of 78702256 is 65220787.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 7750 + ... + 14746.

It is an arithmetic number, because the mean of its divisors is an integer number (4121822).

Almost surely, 2^78702256 is an apocalyptic number.

78702256 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78702256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82436440).

78702256 is an abundant number, since it is smaller than the sum of its proper divisors (86170624).

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

78702256 is a wasteful number, since it uses less digits than its factorization.

78702256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061 (or 7055 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 78702256 is about 8871.4291971474. The cubic root of 78702256 is about 428.5443041458.

The spelling of 78702256 in words is "seventy-eight million, seven hundred two thousand, two hundred fifty-six".