90327321 has 12 divisors (see below), whose sum is σ = 149111872. Its totient is φ = 51615576.

The previous prime is 90327301. The next prime is 90327329. The reversal of 90327321 is 12372309.

It is not a de Polignac number, because 90327321 - 2¹¹ = 90325273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90327329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716821 + ... + 716946.

Almost surely, 2^90327321 is an apocalyptic number.

It is an amenable number.

90327321 is a deficient number, since it is larger than the sum of its proper divisors (58784551).

90327321 is a wasteful number, since it uses less digits than its factorization.

90327321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433780 (or 1433777 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 90327321 is about 9504.0686550551. The cubic root of 90327321 is about 448.6830980615.

It can be divided in two parts, 903 and 27321, that added together give a square (28224 = 168²).

The spelling of 90327321 in words is "ninety million, three hundred twenty-seven thousand, three hundred twenty-one".