90075 has 12 divisors (see below), whose sum is σ = 149048. Its totient is φ = 48000.

The previous prime is 90073. The next prime is 90089. The reversal of 90075 is 57009.

It is not a de Polignac number, because 90075 - 2¹ = 90073 is a prime.

It is a super-2 number, since 2×90075² = 16227011250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90071) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 526 + ... + 675.

2⁹⁰⁰⁷⁵ is an apocalyptic number.

90075 is a deficient number, since it is larger than the sum of its proper divisors (58973).

90075 is a wasteful number, since it uses less digits than its factorization.

90075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 1209 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 90075 is about 300.1249739692. The cubic root of 90075 is about 44.8264923558.

The spelling of 90075 in words is "ninety thousand, seventy-five".