82368169 has 4 divisors (see below), whose sum is σ = 88704196. Its totient is φ = 76032144.

The previous prime is 82368161. The next prime is 82368193. The reversal of 82368169 is 96186328.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11471769 + 70896400 = 3387^2 + 8420^2 .

It is a cyclic number.

It is not a de Polignac number, because 82368169 - 2³ = 82368161 is a prime.

It is a super-2 number, since 2×82368169² = 13569030528825122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82368161) 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, 3167994 + ... + 3168019.

It is an arithmetic number, because the mean of its divisors is an integer number (22176049).

Almost surely, 2^82368169 is an apocalyptic number.

It is an amenable number.

82368169 is a deficient number, since it is larger than the sum of its proper divisors (6336027).

82368169 is a wasteful number, since it uses less digits than its factorization.

82368169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336026.

The product of its digits is 124416, while the sum is 43.

The square root of 82368169 is about 9075.6911031612. The cubic root of 82368169 is about 435.0973825222.

The spelling of 82368169 in words is "eighty-two million, three hundred sixty-eight thousand, one hundred sixty-nine".