82288399 has 8 divisors (see below), whose sum is σ = 86938560. Its totient is φ = 77759136.

The previous prime is 82288357. The next prime is 82288429. The reversal of 82288399 is 99388228.

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 82288399 - 2²⁵ = 48733967 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 (82282399) 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, 28824 + ... + 31549.

It is an arithmetic number, because the mean of its divisors is an integer number (10867320).

Almost surely, 2^82288399 is an apocalyptic number.

82288399 is a deficient number, since it is larger than the sum of its proper divisors (4650161).

82288399 is a wasteful number, since it uses less digits than its factorization.

82288399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60449.

The product of its digits is 497664, while the sum is 49.

The square root of 82288399 is about 9071.2953319799. The cubic root of 82288399 is about 434.9568795060.

The spelling of 82288399 in words is "eighty-two million, two hundred eighty-eight thousand, three hundred ninety-nine".