82366291 has 8 divisors (see below), whose sum is σ = 94612320. Its totient is φ = 70240128.

The previous prime is 82366283. The next prime is 82366303. The reversal of 82366291 is 19266328.

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

It is not a de Polignac number, because 82366291 - 2³ = 82366283 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 82366291.

It is not an unprimeable number, because it can be changed into a prime (82366201) 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, 28486 + ... + 31243.

It is an arithmetic number, because the mean of its divisors is an integer number (11826540).

Almost surely, 2^82366291 is an apocalyptic number.

82366291 is a deficient number, since it is larger than the sum of its proper divisors (12246029).

82366291 is a wasteful number, since it uses less digits than its factorization.

82366291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59933.

The product of its digits is 31104, while the sum is 37.

The square root of 82366291 is about 9075.5876393763. The cubic root of 82366291 is about 435.0940757469.

Adding to 82366291 its sum of digits (37), we get a palindrome (82366328).

The spelling of 82366291 in words is "eighty-two million, three hundred sixty-six thousand, two hundred ninety-one".