83982639 has 8 divisors (see below), whose sum is σ = 120590512. Its totient is φ = 51681600.

The previous prime is 83982589. The next prime is 83982649. The reversal of 83982639 is 93628938.

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

It is not a de Polignac number, because 83982639 - 2⁷ = 83982511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83982649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076662 + ... + 1076739.

It is an arithmetic number, because the mean of its divisors is an integer number (15073814).

Almost surely, 2^83982639 is an apocalyptic number.

83982639 is a deficient number, since it is larger than the sum of its proper divisors (36607873).

83982639 is a wasteful number, since it uses less digits than its factorization.

83982639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153417.

The product of its digits is 559872, while the sum is 48.

The square root of 83982639 is about 9164.2042207712. The cubic root of 83982639 is about 437.9217401513.

The spelling of 83982639 in words is "eighty-three million, nine hundred eighty-two thousand, six hundred thirty-nine".