82392779 has 4 divisors (see below), whose sum is σ = 94163184. Its totient is φ = 70622376.

The previous prime is 82392769. The next prime is 82392803. The reversal of 82392779 is 97729328.

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

It is a cyclic number.

It is not a de Polignac number, because 82392779 - 2⁴ = 82392763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82392749) 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, 5885192 + ... + 5885205.

It is an arithmetic number, because the mean of its divisors is an integer number (23540796).

Almost surely, 2^82392779 is an apocalyptic number.

82392779 is a deficient number, since it is larger than the sum of its proper divisors (11770405).

82392779 is a wasteful number, since it uses less digits than its factorization.

82392779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11770404.

The product of its digits is 381024, while the sum is 47.

The square root of 82392779 is about 9077.0468215163. The cubic root of 82392779 is about 435.1407110736.

The spelling of 82392779 in words is "eighty-two million, three hundred ninety-two thousand, seven hundred seventy-nine".