82668599 has 8 divisors (see below), whose sum is σ = 91900032. Its totient is φ = 73847520.

The previous prime is 82668583. The next prime is 82668613. The reversal of 82668599 is 99586628.

It is a happy number.

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 82668599 - 2⁴ = 82668583 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 82668599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82668539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102164 + ... + 102969.

It is an arithmetic number, because the mean of its divisors is an integer number (11487504).

Almost surely, 2^82668599 is an apocalyptic number.

82668599 is a deficient number, since it is larger than the sum of its proper divisors (9231433).

82668599 is a wasteful number, since it uses less digits than its factorization.

82668599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205177.

The product of its digits is 1866240, while the sum is 53.

The square root of 82668599 is about 9092.2273948687. The cubic root of 82668599 is about 435.6257326701.

The spelling of 82668599 in words is "eighty-two million, six hundred sixty-eight thousand, five hundred ninety-nine".