83988938 has 8 divisors (see below), whose sum is σ = 137436480. Its totient is φ = 38176780.

The previous prime is 83988917. The next prime is 83988967.

83988938 is nontrivially palindromic in base 10.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1908818 + ... + 1908861.

It is an arithmetic number, because the mean of its divisors is an integer number (17179560).

Almost surely, 2^83988938 is an apocalyptic number.

83988938 is a deficient number, since it is larger than the sum of its proper divisors (53447542).

83988938 is a wasteful number, since it uses less digits than its factorization.

83988938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817692.

The product of its digits is 2985984, while the sum is 56.

The square root of 83988938 is about 9164.5478884667. The cubic root of 83988938 is about 437.9326884461.

The spelling of 83988938 in words is "eighty-three million, nine hundred eighty-eight thousand, nine hundred thirty-eight".