90100417 has 4 divisors (see below), whose sum is σ = 98291376. Its totient is φ = 81909460.

The previous prime is 90100397. The next prime is 90100447. The reversal of 90100417 is 71400109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90100417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90100447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4095463 + ... + 4095484.

It is an arithmetic number, because the mean of its divisors is an integer number (24572844).

Almost surely, 2^90100417 is an apocalyptic number.

It is an amenable number.

90100417 is a deficient number, since it is larger than the sum of its proper divisors (8190959).

90100417 is a wasteful number, since it uses less digits than its factorization.

90100417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8190958.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 90100417 is about 9492.1239456720. The cubic root of 90100417 is about 448.3070827887.

The spelling of 90100417 in words is "ninety million, one hundred thousand, four hundred seventeen".