90853 has 4 divisors (see below), whose sum is σ = 103840. Its totient is φ = 77868.

The previous prime is 90847. The next prime is 90863. The reversal of 90853 is 35809.

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 90853 - 2⁵ = 90821 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90803) 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, 6483 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (25960).

2⁹⁰⁸⁵³ is an apocalyptic number.

It is an amenable number.

90853 is a deficient number, since it is larger than the sum of its proper divisors (12987).

90853 is a wasteful number, since it uses less digits than its factorization.

90853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12986.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 90853 is about 301.4183139758. The cubic root of 90853 is about 44.9551817150.

It can be divided in two parts, 908 and 53, that added together give a square (961 = 31²).

The spelling of 90853 in words is "ninety thousand, eight hundred fifty-three".