82548239 has 4 divisors (see below), whose sum is σ = 85394760. Its totient is φ = 79701720.

The previous prime is 82548199. The next prime is 82548241. The reversal of 82548239 is 93284528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82548239 is a prime.

It is a super-2 number, since 2×82548239² = 13628423524002242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82548196 and 82548205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82548259) 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, 1423217 + ... + 1423274.

It is an arithmetic number, because the mean of its divisors is an integer number (21348690).

Almost surely, 2^82548239 is an apocalyptic number.

82548239 is a deficient number, since it is larger than the sum of its proper divisors (2846521).

82548239 is a wasteful number, since it uses less digits than its factorization.

82548239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846520.

The product of its digits is 138240, while the sum is 41.

The square root of 82548239 is about 9085.6061437859. The cubic root of 82548239 is about 435.4142159225.

The spelling of 82548239 in words is "eighty-two million, five hundred forty-eight thousand, two hundred thirty-nine".