90663 has 8 divisors (see below), whose sum is σ = 123648. Its totient is φ = 59064.

The previous prime is 90659. The next prime is 90677. The reversal of 90663 is 36609.

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

It is not a de Polignac number, because 90663 - 2² = 90659 is a prime.

90663 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90163) 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, 181 + ... + 462.

It is an arithmetic number, because the mean of its divisors is an integer number (15456).

2⁹⁰⁶⁶³ is an apocalyptic number.

90663 is a deficient number, since it is larger than the sum of its proper divisors (32985).

90663 is a wasteful number, since it uses less digits than its factorization.

90663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 90663 is about 301.1029724197. The cubic root of 90663 is about 44.9238217316.

It can be divided in two parts, 906 and 63, that added together give a palindrome (969).

The spelling of 90663 in words is "ninety thousand, six hundred sixty-three".