90833090 has 16 divisors (see below), whose sum is σ = 163753272. Its totient is φ = 36276864.

The previous prime is 90833089. The next prime is 90833101. The reversal of 90833090 is 9033809.

It can be written as a sum of positive squares in 4 ways, for example, as 88153321 + 2679769 = 9389^2 + 1637^2 .

It is a Curzon 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, 62 + ... + 13478.

Almost surely, 2^90833090 is an apocalyptic number.

90833090 is a deficient number, since it is larger than the sum of its proper divisors (72920182).

90833090 is a wasteful number, since it uses less digits than its factorization.

90833090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14101.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 90833090 is about 9530.6395378275. The cubic root of 90833090 is about 449.5189757077.

Adding to 90833090 its reverse (9033809), we get a palindrome (99866899).

The spelling of 90833090 in words is "ninety million, eight hundred thirty-three thousand, ninety".