90993105 has 32 divisors (see below), whose sum is σ = 184876800. Its totient is φ = 41596416.

The previous prime is 90993043. The next prime is 90993167. The reversal of 90993105 is 50139909.

It is an interprime number because it is at equal distance from previous prime (90993043) and next prime (90993167).

It is not a de Polignac number, because 90993105 - 2⁶ = 90993041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90993105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47200 + ... + 49089.

It is an arithmetic number, because the mean of its divisors is an integer number (5777400).

Almost surely, 2^90993105 is an apocalyptic number.

It is an amenable number.

90993105 is an abundant number, since it is smaller than the sum of its proper divisors (93883695).

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

90993105 is a wasteful number, since it uses less digits than its factorization.

90993105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96310 (or 96304 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 90993105 is about 9539.0306111261. The cubic root of 90993105 is about 449.7827840552.

The spelling of 90993105 in words is "ninety million, nine hundred ninety-three thousand, one hundred five".