80678754 has 80 divisors (see below), whose sum is σ = 201552120. Its totient is φ = 23950080.

The previous prime is 80678747. The next prime is 80678809. The reversal of 80678754 is 45787608.

It can be written as a sum of positive squares in 4 ways, for example, as 72641529 + 8037225 = 8523^2 + 2835^2 .

It is a super-2 number, since 2×80678754² = 13018122693985032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 60414 + ... + 61734.

Almost surely, 2^80678754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80678754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100776060).

80678754 is an abundant number, since it is smaller than the sum of its proper divisors (120873366).

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

80678754 is a wasteful number, since it uses less digits than its factorization.

80678754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 80678754 is about 8982.1352695225. The cubic root of 80678754 is about 432.1021170632.

The spelling of 80678754 in words is "eighty million, six hundred seventy-eight thousand, seven hundred fifty-four".