80678544 has 20 divisors (see below), whose sum is σ = 208419696. Its totient is φ = 26892832.

The previous prime is 80678531. The next prime is 80678629. The reversal of 80678544 is 44587608.

It is a junction number, because it is equal to n+sod(n) for n = 80678496 and 80678505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840354 + ... + 840449.

Almost surely, 2^80678544 is an apocalyptic number.

It is an amenable number.

80678544 is an abundant number, since it is smaller than the sum of its proper divisors (127741152).

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

80678544 is a wasteful number, since it uses less digits than its factorization.

80678544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680814 (or 1680808 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 80678544 is about 8982.1235796442. The cubic root of 80678544 is about 432.1017421544.

The spelling of 80678544 in words is "eighty million, six hundred seventy-eight thousand, five hundred forty-four".