82823979 has 8 divisors (see below), whose sum is σ = 126208000. Its totient is φ = 47327976.

The previous prime is 82823969. The next prime is 82823981. The reversal of 82823979 is 97932828.

It is a happy number.

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

It is not a de Polignac number, because 82823979 - 2⁵ = 82823947 is a prime.

It is a super-2 number, since 2×82823979² = 13719622994784882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82823969) 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 7 ways as a sum of consecutive naturals, for example, 1971979 + ... + 1972020.

It is an arithmetic number, because the mean of its divisors is an integer number (15776000).

Almost surely, 2^82823979 is an apocalyptic number.

82823979 is a deficient number, since it is larger than the sum of its proper divisors (43384021).

82823979 is a wasteful number, since it uses less digits than its factorization.

82823979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944009.

The product of its digits is 435456, while the sum is 48.

The square root of 82823979 is about 9100.7680445114. The cubic root of 82823979 is about 435.8984890490.

The spelling of 82823979 in words is "eighty-two million, eight hundred twenty-three thousand, nine hundred seventy-nine".