93995990 has 32 divisors (see below), whose sum is σ = 185829120. Its totient is φ = 33948000.

The previous prime is 93995981. The next prime is 93996013. The reversal of 93995990 is 9959939.

It is a super-2 number, since 2×93995990² = 17670492272160200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13781 + ... + 19439.

It is an arithmetic number, because the mean of its divisors is an integer number (5807160).

Almost surely, 2^93995990 is an apocalyptic number.

93995990 is a deficient number, since it is larger than the sum of its proper divisors (91833130).

93995990 is a wasteful number, since it uses less digits than its factorization.

93995990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828.

The product of its (nonzero) digits is 885735, while the sum is 53.

The square root of 93995990 is about 9695.1529126672. The cubic root of 93995990 is about 454.6771287495.

It can be divided in two parts, 939959 and 90, that added together give a palindrome (940049).

The spelling of 93995990 in words is "ninety-three million, nine hundred ninety-five thousand, nine hundred ninety".