80865420 has 24 divisors (see below), whose sum is σ = 226423344. Its totient is φ = 21564096.

The previous prime is 80865419. The next prime is 80865431. The reversal of 80865420 is 2456808.

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, 673819 + ... + 673938.

It is an arithmetic number, because the mean of its divisors is an integer number (9434306).

Almost surely, 2^80865420 is an apocalyptic number.

It is an amenable number.

80865420 is an abundant number, since it is smaller than the sum of its proper divisors (145557924).

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

80865420 is a wasteful number, since it uses less digits than its factorization.

80865420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347769 (or 1347767 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 80865420 is about 8992.5202251649. The cubic root of 80865420 is about 432.4351111623.

The spelling of 80865420 in words is "eighty million, eight hundred sixty-five thousand, four hundred twenty".