82740339 has 32 divisors (see below), whose sum is σ = 135943680. Its totient is φ = 49312800.

The previous prime is 82740319. The next prime is 82740341. The reversal of 82740339 is 93304728.

It is not a de Polignac number, because 82740339 - 2⁸ = 82740083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82740319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15834 + ... + 20400.

It is an arithmetic number, because the mean of its divisors is an integer number (4248240).

Almost surely, 2^82740339 is an apocalyptic number.

82740339 is a deficient number, since it is larger than the sum of its proper divisors (53203341).

82740339 is a wasteful number, since it uses less digits than its factorization.

82740339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4648 (or 4642 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 82740339 is about 9096.1716672455. The cubic root of 82740339 is about 435.7517085734.

The spelling of 82740339 in words is "eighty-two million, seven hundred forty thousand, three hundred thirty-nine".