90027 has 12 divisors (see below), whose sum is σ = 148720. Its totient is φ = 51408.

The previous prime is 90023. The next prime is 90031. The reversal of 90027 is 72009.

It is an interprime number because it is at equal distance from previous prime (90023) and next prime (90031).

It is not a de Polignac number, because 90027 - 2² = 90023 is a prime.

It is a Duffinian number.

90027 is a modest number, since divided by 27 gives 9 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 89991 and 90009.

It is not an unprimeable number, because it can be changed into a prime (90023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 652 + ... + 777.

2⁹⁰⁰²⁷ is an apocalyptic number.

90027 is a deficient number, since it is larger than the sum of its proper divisors (58693).

90027 is a wasteful number, since it uses less digits than its factorization.

90027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 90027 is about 300.0449966255. The cubic root of 90027 is about 44.8185284223.

Subtracting from 90027 its sum of digits (18), we obtain a palindrome (90009).

It can be divided in two parts, 9002 and 7, that added together give a palindrome (9009).

The spelling of 90027 in words is "ninety thousand, twenty-seven".