90011117 has 16 divisors (see below), whose sum is σ = 104784000. Its totient is φ = 75727872.

The previous prime is 90011111. The next prime is 90011149. The reversal of 90011117 is 71111009.

It is a cyclic number.

It is not a de Polignac number, because 90011117 - 2⁴ = 90011101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90011111) 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, 180134 + ... + 180632.

It is an arithmetic number, because the mean of its divisors is an integer number (6549000).

Almost surely, 2^90011117 is an apocalyptic number.

It is an amenable number.

90011117 is a deficient number, since it is larger than the sum of its proper divisors (14772883).

90011117 is a wasteful number, since it uses less digits than its factorization.

90011117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 63, while the sum is 20.

The square root of 90011117 is about 9487.4188797586. The cubic root of 90011117 is about 448.1589256651.

The spelling of 90011117 in words is "ninety million, eleven thousand, one hundred seventeen".