90273 has 4 divisors (see below), whose sum is σ = 120368. Its totient is φ = 60180.

The previous prime is 90271. The next prime is 90281. The reversal of 90273 is 37209.

90273 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 90273 - 2¹ = 90271 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15043 + ... + 15048.

It is an arithmetic number, because the mean of its divisors is an integer number (30092).

2⁹⁰²⁷³ is an apocalyptic number.

It is an amenable number.

90273 is a deficient number, since it is larger than the sum of its proper divisors (30095).

90273 is a wasteful number, since it uses less digits than its factorization.

90273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30094.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 90273 is about 300.4546554807. The cubic root of 90273 is about 44.8593137085.

It can be divided in two parts, 90 and 273, that added together give a palindrome (363).

The spelling of 90273 in words is "ninety thousand, two hundred seventy-three".