93988939 has 4 divisors (see below), whose sum is σ = 102533400. Its totient is φ = 85444480.

The previous prime is 93988919. The next prime is 93988943.

93988939 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 93988939 - 2¹¹ = 93986891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93988919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4272214 + ... + 4272235.

It is an arithmetic number, because the mean of its divisors is an integer number (25633350).

Almost surely, 2^93988939 is an apocalyptic number.

93988939 is a deficient number, since it is larger than the sum of its proper divisors (8544461).

93988939 is a wasteful number, since it uses less digits than its factorization.

93988939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8544460.

The product of its digits is 3779136, while the sum is 58.

The square root of 93988939 is about 9694.7892705308. The cubic root of 93988939 is about 454.6657594396.

The spelling of 93988939 in words is "ninety-three million, nine hundred eighty-eight thousand, nine hundred thirty-nine".