90650331 has 24 divisors (see below), whose sum is σ = 134034576. Its totient is φ = 59019840.

The previous prime is 90650323. The next prime is 90650347. The reversal of 90650331 is 13305609.

90650331 is a `hidden beast` number, since 9 + 0 + 650 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 90650331 - 2³ = 90650323 is a prime.

It is a super-2 number, since 2×90650331² = 16434965020819122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90650295 and 90650304.

It is not an unprimeable number, because it can be changed into a prime (90650381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88981 + ... + 89993.

It is an arithmetic number, because the mean of its divisors is an integer number (5584774).

Almost surely, 2^90650331 is an apocalyptic number.

90650331 is a deficient number, since it is larger than the sum of its proper divisors (43384245).

90650331 is a wasteful number, since it uses less digits than its factorization.

90650331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 90650331 is about 9521.0467386732. The cubic root of 90650331 is about 449.2172912345.

The spelling of 90650331 in words is "ninety million, six hundred fifty thousand, three hundred thirty-one".