90088005 has 16 divisors (see below), whose sum is σ = 164732544. Its totient is φ = 41183040.

The previous prime is 90087997. The next prime is 90088021. The reversal of 90088005 is 50088009.

It is not a de Polignac number, because 90088005 - 2³ = 90087997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428886 + ... + 429095.

It is an arithmetic number, because the mean of its divisors is an integer number (10295784).

Almost surely, 2^90088005 is an apocalyptic number.

It is an amenable number.

90088005 is a deficient number, since it is larger than the sum of its proper divisors (74644539).

90088005 is a wasteful number, since it uses less digits than its factorization.

90088005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857996.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 90088005 is about 9491.4701179533. The cubic root of 90088005 is about 448.2864959693.

The spelling of 90088005 in words is "ninety million, eighty-eight thousand, five".