83958885 has 24 divisors (see below), whose sum is σ = 146872440. Its totient is φ = 44364672.

The previous prime is 83958877. The next prime is 83958893. The reversal of 83958885 is 58885938.

It is an interprime number because it is at equal distance from previous prime (83958877) and next prime (83958893).

It can be written as a sum of positive squares in 4 ways, for example, as 181476 + 83777409 = 426^2 + 9153^2 .

It is not a de Polignac number, because 83958885 - 2³ = 83958877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3654 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (6119685).

Almost surely, 2^83958885 is an apocalyptic number.

It is an amenable number.

83958885 is a deficient number, since it is larger than the sum of its proper divisors (62913555).

83958885 is a wasteful number, since it uses less digits than its factorization.

83958885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17237 (or 17234 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 54.

The square root of 83958885 is about 9162.9081082373. The cubic root of 83958885 is about 437.8804483873.

The spelling of 83958885 in words is "eighty-three million, nine hundred fifty-eight thousand, eight hundred eighty-five".