90087417 has 32 divisors (see below), whose sum is σ = 160563200. Its totient is φ = 48767184.

The previous prime is 90087407. The next prime is 90087419. The reversal of 90087417 is 71478009.

It is not a de Polignac number, because 90087417 - 2⁸ = 90087161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90087419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8953 + ... + 16134.

It is an arithmetic number, because the mean of its divisors is an integer number (5017600).

Almost surely, 2^90087417 is an apocalyptic number.

It is an amenable number.

90087417 is a deficient number, since it is larger than the sum of its proper divisors (70475783).

90087417 is a wasteful number, since it uses less digits than its factorization.

90087417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25122 (or 25116 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 90087417 is about 9491.4391427222. The cubic root of 90087417 is about 448.2855206525.

The spelling of 90087417 in words is "ninety million, eighty-seven thousand, four hundred seventeen".