90303 has 8 divisors (see below), whose sum is σ = 124416. Its totient is φ = 58200.

The previous prime is 90289. The next prime is 90313. The reversal of 90303 is 30309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90303 - 2⁵ = 90271 is a prime.

It is an alternating number because its digits alternate between odd and even.

90303 is a modest number, since divided by 303 gives 9 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393 + ... + 578.

It is an arithmetic number, because the mean of its divisors is an integer number (15552).

2⁹⁰³⁰³ is an apocalyptic number.

90303 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

90303 is a deficient number, since it is larger than the sum of its proper divisors (34113).

90303 is a wasteful number, since it uses less digits than its factorization.

90303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 90303 is about 300.5045756723. The cubic root of 90303 is about 44.8642824528.

It can be divided in two parts, 90 and 303, that added together give a palindrome (393).

The spelling of 90303 in words is "ninety thousand, three hundred three".