82855799 has 6 divisors (see below), whose sum is σ = 89719776. Its totient is φ = 76482120.

The previous prime is 82855763. The next prime is 82855837. The reversal of 82855799 is 99755828.

It is not a de Polignac number, because 82855799 - 2¹⁶ = 82790263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82855799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82555799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244967 + ... + 245304.

It is an arithmetic number, because the mean of its divisors is an integer number (14953296).

Almost surely, 2^82855799 is an apocalyptic number.

82855799 is a deficient number, since it is larger than the sum of its proper divisors (6863977).

82855799 is a wasteful number, since it uses less digits than its factorization.

82855799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490297 (or 490284 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 53.

The square root of 82855799 is about 9102.5160807328. The cubic root of 82855799 is about 435.9543042618.

The spelling of 82855799 in words is "eighty-two million, eight hundred fifty-five thousand, seven hundred ninety-nine".