82668583 has 2 divisors, whose sum is σ = 82668584. Its totient is φ = 82668582.

The previous prime is 82668577. The next prime is 82668613. The reversal of 82668583 is 38586628.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82668583 - 2²¹ = 80571431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82668503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41334291 + 41334292.

It is an arithmetic number, because the mean of its divisors is an integer number (41334292).

Almost surely, 2^82668583 is an apocalyptic number.

82668583 is a deficient number, since it is larger than the sum of its proper divisors (1).

82668583 is an equidigital number, since it uses as much as digits as its factorization.

82668583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 46.

The square root of 82668583 is about 9092.2265149962. The cubic root of 82668583 is about 435.6257045659.

The spelling of 82668583 in words is "eighty-two million, six hundred sixty-eight thousand, five hundred eighty-three".