82891299 has 16 divisors (see below), whose sum is σ = 113992704. Its totient is φ = 53544000.

The previous prime is 82891273. The next prime is 82891321. The reversal of 82891299 is 99219828.

It is not a de Polignac number, because 82891299 - 2⁵ = 82891267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82891219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16342 + ... + 20804.

It is an arithmetic number, because the mean of its divisors is an integer number (7124544).

Almost surely, 2^82891299 is an apocalyptic number.

82891299 is a deficient number, since it is larger than the sum of its proper divisors (31101405).

82891299 is a wasteful number, since it uses less digits than its factorization.

82891299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658.

The product of its digits is 186624, while the sum is 48.

The square root of 82891299 is about 9104.4658821921. The cubic root of 82891299 is about 436.0165576716.

The spelling of 82891299 in words is "eighty-two million, eight hundred ninety-one thousand, two hundred ninety-nine".