90790 has 16 divisors (see below), whose sum is σ = 186912. Its totient is φ = 31104.

The previous prime is 90787. The next prime is 90793. The reversal of 90790 is 9709.

It is an interprime number because it is at equal distance from previous prime (90787) and next prime (90793).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579 + ... + 718.

It is an arithmetic number, because the mean of its divisors is an integer number (11682).

2⁹⁰⁷⁹⁰ is an apocalyptic number.

90790 is an abundant number, since it is smaller than the sum of its proper divisors (96122).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93456).

90790 is a wasteful number, since it uses less digits than its factorization.

90790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 90790 is about 301.3137899267. The cubic root of 90790 is about 44.9447882540.

The spelling of 90790 in words is "ninety thousand, seven hundred ninety".