82474239 has 8 divisors (see below), whose sum is σ = 111514752. Its totient is φ = 54208280.

The previous prime is 82474219. The next prime is 82474241. The reversal of 82474239 is 93247428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82474239 - 2⁸ = 82473983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82474197 and 82474206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82474219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193389 + ... + 193814.

It is an arithmetic number, because the mean of its divisors is an integer number (13939344).

Almost surely, 2^82474239 is an apocalyptic number.

82474239 is a deficient number, since it is larger than the sum of its proper divisors (29040513).

82474239 is a wasteful number, since it uses less digits than its factorization.

82474239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387277.

The product of its digits is 96768, while the sum is 39.

The square root of 82474239 is about 9081.5328551958. The cubic root of 82474239 is about 435.2840686486.

The spelling of 82474239 in words is "eighty-two million, four hundred seventy-four thousand, two hundred thirty-nine".