90461 has 4 divisors (see below), whose sum is σ = 103392. Its totient is φ = 77532.

The previous prime is 90439. The next prime is 90469. The reversal of 90461 is 16409.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16409 = 61 ⋅269.

It is not a de Polignac number, because 90461 - 2⁶ = 90397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90469) 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, 6455 + ... + 6468.

It is an arithmetic number, because the mean of its divisors is an integer number (25848).

2⁹⁰⁴⁶¹ is an apocalyptic number.

It is an amenable number.

90461 is a deficient number, since it is larger than the sum of its proper divisors (12931).

90461 is a wasteful number, since it uses less digits than its factorization.

90461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12930.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 90461 is about 300.7673519516. The cubic root of 90461 is about 44.8904330290.

The spelling of 90461 in words is "ninety thousand, four hundred sixty-one".