90455 has 8 divisors (see below), whose sum is σ = 110400. Its totient is φ = 71136.

The previous prime is 90439. The next prime is 90469. The reversal of 90455 is 55409.

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

It is a cyclic number.

It is not a de Polignac number, because 90455 - 2⁴ = 90439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281 + ... + 509.

It is an arithmetic number, because the mean of its divisors is an integer number (13800).

2⁹⁰⁴⁵⁵ is an apocalyptic number.

90455 is a deficient number, since it is larger than the sum of its proper divisors (19945).

90455 is a wasteful number, since it uses less digits than its factorization.

90455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 90455 is about 300.7573772994. The cubic root of 90455 is about 44.8894405256.

It can be divided in two parts, 904 and 55, that added together give a palindrome (959).

The spelling of 90455 in words is "ninety thousand, four hundred fifty-five".