80878020 has 24 divisors (see below), whose sum is σ = 226458624. Its totient is φ = 21567456.

The previous prime is 80877997. The next prime is 80878043. The reversal of 80878020 is 2087808.

It is an interprime number because it is at equal distance from previous prime (80877997) and next prime (80878043).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 673924 + ... + 674043.

It is an arithmetic number, because the mean of its divisors is an integer number (9435776).

Almost surely, 2^80878020 is an apocalyptic number.

It is an amenable number.

80878020 is an abundant number, since it is smaller than the sum of its proper divisors (145580604).

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

80878020 is a wasteful number, since it uses less digits than its factorization.

80878020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347979 (or 1347977 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 80878020 is about 8993.2207801210. The cubic root of 80878020 is about 432.4575698739.

The spelling of 80878020 in words is "eighty million, eight hundred seventy-eight thousand, twenty".