83689938 has 48 divisors (see below), whose sum is σ = 187229952. Its totient is φ = 27000000.

The previous prime is 83689877. The next prime is 83690017. The reversal of 83689938 is 83998638.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 111063 + ... + 111813.

It is an arithmetic number, because the mean of its divisors is an integer number (3900624).

Almost surely, 2^83689938 is an apocalyptic number.

83689938 is an abundant number, since it is smaller than the sum of its proper divisors (103540014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83689938 is a wasteful number, since it uses less digits than its factorization.

83689938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 948 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 83689938 is about 9148.2204826950. The cubic root of 83689938 is about 437.4123914918.

The spelling of 83689938 in words is "eighty-three million, six hundred eighty-nine thousand, nine hundred thirty-eight".