82173369 has 4 divisors (see below), whose sum is σ = 109564496. Its totient is φ = 54782244.

The previous prime is 82173367. The next prime is 82173379. The reversal of 82173369 is 96337128.

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 82173369 - 2¹ = 82173367 is a prime.

It is a super-2 number, since 2×82173369² = 13504925145620322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82173361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13695559 + ... + 13695564.

It is an arithmetic number, because the mean of its divisors is an integer number (27391124).

Almost surely, 2^82173369 is an apocalyptic number.

It is an amenable number.

82173369 is a deficient number, since it is larger than the sum of its proper divisors (27391127).

82173369 is a wasteful number, since it uses less digits than its factorization.

82173369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27391126.

The product of its digits is 54432, while the sum is 39.

The square root of 82173369 is about 9064.9527853155. The cubic root of 82173369 is about 434.7541112660.

The spelling of 82173369 in words is "eighty-two million, one hundred seventy-three thousand, three hundred sixty-nine".