83980885 has 16 divisors (see below), whose sum is σ = 103109760. Its totient is φ = 65640640.

The previous prime is 83980877. The next prime is 83980913. The reversal of 83980885 is 58808938.

83980885 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 83980885 - 2³ = 83980877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81906 + ... + 82924.

It is an arithmetic number, because the mean of its divisors is an integer number (6444360).

Almost surely, 2^83980885 is an apocalyptic number.

It is an amenable number.

83980885 is a deficient number, since it is larger than the sum of its proper divisors (19128875).

83980885 is a wasteful number, since it uses less digits than its factorization.

83980885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 83980885 is about 9164.1085218367. The cubic root of 83980885 is about 437.9186914256.

It can be divided in two parts, 8 and 3980885, that added together give a palindrome (3980893).

The spelling of 83980885 in words is "eighty-three million, nine hundred eighty thousand, eight hundred eighty-five".