80863884 has 18 divisors (see below), whose sum is σ = 204406020. Its totient is φ = 26954616.

The previous prime is 80863879. The next prime is 80863897. The reversal of 80863884 is 48836808.

80863884 is a `hidden beast` number, since 8 + 0 + 8 + 638 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123074 + ... + 1123145.

It is an arithmetic number, because the mean of its divisors is an integer number (11355890).

Almost surely, 2^80863884 is an apocalyptic number.

It is an amenable number.

80863884 is an abundant number, since it is smaller than the sum of its proper divisors (123542136).

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

80863884 is a wasteful number, since it uses less digits than its factorization.

80863884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246229 (or 2246224 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 80863884 is about 8992.4348204477. The cubic root of 80863884 is about 432.4323731789.

The spelling of 80863884 in words is "eighty million, eight hundred sixty-three thousand, eight hundred eighty-four".