90830 has 16 divisors (see below), whose sum is σ = 169344. Its totient is φ = 35040.

The previous prime is 90823. The next prime is 90833. The reversal of 90830 is 3809.

90830 = 173² + 174² + 175².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90833) by changing a digit.

90830 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164 + ... + 456.

It is an arithmetic number, because the mean of its divisors is an integer number (10584).

2⁹⁰⁸³⁰ is an apocalyptic number.

90830 is a deficient number, since it is larger than the sum of its proper divisors (78514).

90830 is a wasteful number, since it uses less digits than its factorization.

90830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331.

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

The square root of 90830 is about 301.3801586037. The cubic root of 90830 is about 44.9513878338.

The spelling of 90830 in words is "ninety thousand, eight hundred thirty".