90790330 has 16 divisors (see below), whose sum is σ = 163752840. Its totient is φ = 36242752.

The previous prime is 90790313. The next prime is 90790331. The reversal of 90790330 is 3309709.

It can be written as a sum of positive squares in 4 ways, for example, as 89927289 + 863041 = 9483^2 + 929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90790292 and 90790301.

It is not an unprimeable number, because it can be changed into a prime (90790331) 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, 3829 + ... + 14008.

Almost surely, 2^90790330 is an apocalyptic number.

90790330 is a deficient number, since it is larger than the sum of its proper divisors (72962510).

90790330 is a wasteful number, since it uses less digits than its factorization.

90790330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18353.

The product of its (nonzero) digits is 5103, while the sum is 31.

The square root of 90790330 is about 9528.3959825356. The cubic root of 90790330 is about 449.4484270843.

The spelling of 90790330 in words is "ninety million, seven hundred ninety thousand, three hundred thirty".