82622231 has 4 divisors (see below), whose sum is σ = 82795200. Its totient is φ = 82449264.

The previous prime is 82622201. The next prime is 82622249. The reversal of 82622231 is 13222628.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82622231 - 2⁶ = 82622167 is a prime.

It is a super-2 number, since 2×82622231² = 13652866110834722, which contains 22 as substring.

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 82622231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82622201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85766 + ... + 86723.

It is an arithmetic number, because the mean of its divisors is an integer number (20698800).

Almost surely, 2^82622231 is an apocalyptic number.

82622231 is a deficient number, since it is larger than the sum of its proper divisors (172969).

82622231 is a wasteful number, since it uses less digits than its factorization.

82622231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172968.

The product of its digits is 2304, while the sum is 26.

The square root of 82622231 is about 9089.6771669845. The cubic root of 82622231 is about 435.5442713822.

Adding to 82622231 its reverse (13222628), we get a palindrome (95844859).

The spelling of 82622231 in words is "eighty-two million, six hundred twenty-two thousand, two hundred thirty-one".