863852081 has 4 divisors (see below), whose sum is σ = 909318000. Its totient is φ = 818386164.

The previous prime is 863852053. The next prime is 863852113. The reversal of 863852081 is 180258368.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 863852081 - 2²⁶ = 796743217 is a prime.

It is a super-2 number, since 2×863852081² = 1492480835696061122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (863852051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22732931 + ... + 22732968.

It is an arithmetic number, because the mean of its divisors is an integer number (227329500).

Almost surely, 2^863852081 is an apocalyptic number.

It is an amenable number.

863852081 is a deficient number, since it is larger than the sum of its proper divisors (45465919).

863852081 is a wasteful number, since it uses less digits than its factorization.

863852081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45465918.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 863852081 is about 29391.3606524094. The cubic root of 863852081 is about 952.3862746584.

The spelling of 863852081 in words is "eight hundred sixty-three million, eight hundred fifty-two thousand, eighty-one".