80678256 has 40 divisors (see below), whose sum is σ = 219390720. Its totient is φ = 25477056.

The previous prime is 80678249. The next prime is 80678263. The reversal of 80678256 is 65287608.

It is an interprime number because it is at equal distance from previous prime (80678249) and next prime (80678263).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43320 + ... + 45143.

It is an arithmetic number, because the mean of its divisors is an integer number (5484768).

Almost surely, 2^80678256 is an apocalyptic number.

It is an amenable number.

80678256 is an abundant number, since it is smaller than the sum of its proper divisors (138712464).

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

80678256 is a wasteful number, since it uses less digits than its factorization.

80678256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88493 (or 88487 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 80678256 is about 8982.1075477863. The cubic root of 80678256 is about 432.1012279927.

The spelling of 80678256 in words is "eighty million, six hundred seventy-eight thousand, two hundred fifty-six".