90112917 has 8 divisors (see below), whose sum is σ = 120204000. Its totient is φ = 60048560.

The previous prime is 90112909. The next prime is 90112927. The reversal of 90112917 is 71921109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90112917 - 2³ = 90112909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90112927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3334 + ... + 13832.

It is an arithmetic number, because the mean of its divisors is an integer number (15025500).

Almost surely, 2^90112917 is an apocalyptic number.

It is an amenable number.

90112917 is a deficient number, since it is larger than the sum of its proper divisors (30091083).

90112917 is a wasteful number, since it uses less digits than its factorization.

90112917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13363.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 90112917 is about 9492.7823634591. The cubic root of 90112917 is about 448.3278136561.

The spelling of 90112917 in words is "ninety million, one hundred twelve thousand, nine hundred seventeen".