82942399 has 8 divisors (see below), whose sum is σ = 85029120. Its totient is φ = 80862936.

The previous prime is 82942309. The next prime is 82942411. The reversal of 82942399 is 99324928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82942399 - 2²⁵ = 49387967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82942309) 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 7 ways as a sum of consecutive naturals, for example, 26874 + ... + 29800.

It is an arithmetic number, because the mean of its divisors is an integer number (10628640).

Almost surely, 2^82942399 is an apocalyptic number.

82942399 is a deficient number, since it is larger than the sum of its proper divisors (2086721).

82942399 is a wasteful number, since it uses less digits than its factorization.

82942399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its digits is 279936, while the sum is 46.

The square root of 82942399 is about 9107.2717649140. The cubic root of 82942399 is about 436.1061363106.

The spelling of 82942399 in words is "eighty-two million, nine hundred forty-two thousand, three hundred ninety-nine".