90638303 has 16 divisors (see below), whose sum is σ = 109309440. Its totient is φ = 73418400.

The previous prime is 90638297. The next prime is 90638323. The reversal of 90638303 is 30383609.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90638303 - 2⁴ = 90638287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90638303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90638323) 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 15 ways as a sum of consecutive naturals, for example, 87398 + ... + 88428.

It is an arithmetic number, because the mean of its divisors is an integer number (6831840).

Almost surely, 2^90638303 is an apocalyptic number.

90638303 is a deficient number, since it is larger than the sum of its proper divisors (18671137).

90638303 is a wasteful number, since it uses less digits than its factorization.

90638303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 90638303 is about 9520.4150644812. The cubic root of 90638303 is about 449.1974221231.

The spelling of 90638303 in words is "ninety million, six hundred thirty-eight thousand, three hundred three".