82899399 has 48 divisors (see below), whose sum is σ = 128088576. Its totient is φ = 47604480.

The previous prime is 82899391. The next prime is 82899403. The reversal of 82899399 is 99399828.

It is not a de Polignac number, because 82899399 - 2³ = 82899391 is a prime.

It is a super-2 number, since 2×82899399² = 13744620709122402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82899391) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733567 + ... + 733679.

It is an arithmetic number, because the mean of its divisors is an integer number (2668512).

Almost surely, 2^82899399 is an apocalyptic number.

82899399 is a deficient number, since it is larger than the sum of its proper divisors (45189177).

82899399 is a wasteful number, since it uses less digits than its factorization.

82899399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 217 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 57.

The square root of 82899399 is about 9104.9107079641. The cubic root of 82899399 is about 436.0307594801.

The spelling of 82899399 in words is "eighty-two million, eight hundred ninety-nine thousand, three hundred ninety-nine".