90253859 has 4 divisors (see below), whose sum is σ = 91956816. Its totient is φ = 88550904.

The previous prime is 90253847. The next prime is 90253871. The reversal of 90253859 is 95835209.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (90253847) and next prime (90253871).

It is a cyclic number.

It is not a de Polignac number, because 90253859 - 2²⁰ = 89205283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90253879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851399 + ... + 851504.

It is an arithmetic number, because the mean of its divisors is an integer number (22989204).

Almost surely, 2^90253859 is an apocalyptic number.

90253859 is a deficient number, since it is larger than the sum of its proper divisors (1702957).

90253859 is a wasteful number, since it uses less digits than its factorization.

90253859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702956.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 90253859 is about 9500.2031030921. The cubic root of 90253859 is about 448.5614290875.

The spelling of 90253859 in words is "ninety million, two hundred fifty-three thousand, eight hundred fifty-nine".