90263 has 2 divisors, whose sum is σ = 90264.
Its totient is φ = 90262.
The previous prime is 90247. The next prime is 90271. The reversal of 90263 is 36209.
It can be divided in two parts, 90 and 263, that added together give a palindrome (353).
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (36209) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 90263 - 24 = 90247 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (90203) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45131 + 45132.
It is an arithmetic number, because the mean of its divisors is an integer number (45132).
290263 is an apocalyptic number.
90263 is a deficient number, since it is larger than the sum of its proper divisors (1).
90263 is an equidigital number, since it uses as much as digits as its factorization.
90263 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 20.
The square root of 90263 is about 300.4380135735.
The cubic root of 90263 is about 44.8576572158.
The spelling of 90263 in words is "ninety thousand, two hundred sixty-three".