82319169 has 4 divisors (see below), whose sum is σ = 109758896. Its totient is φ = 54879444.

The previous prime is 82319161. The next prime is 82319173. The reversal of 82319169 is 96191328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82319169 - 2³ = 82319161 is a prime.

It is a super-2 number, since 2×82319169² = 13552891169701122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82319161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13719859 + ... + 13719864.

It is an arithmetic number, because the mean of its divisors is an integer number (27439724).

Almost surely, 2^82319169 is an apocalyptic number.

It is an amenable number.

82319169 is a deficient number, since it is larger than the sum of its proper divisors (27439727).

82319169 is a wasteful number, since it uses less digits than its factorization.

82319169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27439726.

The product of its digits is 23328, while the sum is 39.

The square root of 82319169 is about 9072.9911826255. The cubic root of 82319169 is about 435.0110870473.

The spelling of 82319169 in words is "eighty-two million, three hundred nineteen thousand, one hundred sixty-nine".