90943330 has 16 divisors (see below), whose sum is σ = 167691384. Its totient is φ = 35489920.

The previous prime is 90943297. The next prime is 90943331. The reversal of 90943330 is 3334909.

It can be written as a sum of positive squares in 4 ways, for example, as 41254929 + 49688401 = 6423^2 + 7049^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90943292 and 90943301.

It is not an unprimeable number, because it can be changed into a prime (90943331) 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, 110497 + ... + 111316.

Almost surely, 2^90943330 is an apocalyptic number.

90943330 is a deficient number, since it is larger than the sum of its proper divisors (76748054).

90943330 is a wasteful number, since it uses less digits than its factorization.

90943330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221861.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 90943330 is about 9536.4212365017. The cubic root of 90943330 is about 449.7007557831.

The spelling of 90943330 in words is "ninety million, nine hundred forty-three thousand, three hundred thirty".