863852080 has 80 divisors (see below), whose sum is σ = 2471966784. Its totient is φ = 273392640.

The previous prime is 863852053. The next prime is 863852113. The reversal of 863852080 is 80258368.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×863852080² = 1492480832240652800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52051 + ... + 66610.

Almost surely, 2^863852080 is an apocalyptic number.

863852080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

863852080 is an abundant number, since it is smaller than the sum of its proper divisors (1608114704).

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

863852080 is a wasteful number, since it uses less digits than its factorization.

863852080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118694 (or 118688 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 863852080 is about 29391.3606353976. The cubic root of 863852080 is about 952.3862742909.

The spelling of 863852080 in words is "eight hundred sixty-three million, eight hundred fifty-two thousand, eighty".