93888993 has 16 divisors (see below), whose sum is σ = 136806336. Its totient is φ = 56802240.

The previous prime is 93888973. The next prime is 93889009. The reversal of 93888993 is 39988839.

It is not a de Polignac number, because 93888993 - 2¹⁴ = 93872609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (93888913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19371 + ... + 23727.

It is an arithmetic number, because the mean of its divisors is an integer number (8550396).

Almost surely, 2^93888993 is an apocalyptic number.

It is an amenable number.

93888993 is a deficient number, since it is larger than the sum of its proper divisors (42917343).

93888993 is a wasteful number, since it uses less digits than its factorization.

93888993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5024.

The product of its digits is 3359232, while the sum is 57.

The square root of 93888993 is about 9689.6332747943. The cubic root of 93888993 is about 454.5045413879.

It can be divided in two parts, 9388 and 8993, that added together give a palindrome (18381).

The spelling of 93888993 in words is "ninety-three million, eight hundred eighty-eight thousand, nine hundred ninety-three".