90395903 has 12 divisors (see below), whose sum is σ = 98288568. Its totient is φ = 83098080.

The previous prime is 90395897. The next prime is 90395917. The reversal of 90395903 is 30959309.

It is not a de Polignac number, because 90395903 - 2²⁶ = 23287039 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90395923) 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 11 ways as a sum of consecutive naturals, for example, 45848 + ... + 47778.

It is an arithmetic number, because the mean of its divisors is an integer number (8190714).

Almost surely, 2^90395903 is an apocalyptic number.

90395903 is a deficient number, since it is larger than the sum of its proper divisors (7892665).

90395903 is a wasteful number, since it uses less digits than its factorization.

90395903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234 (or 2221 counting only the distinct ones).

The product of its (nonzero) digits is 32805, while the sum is 38.

The square root of 90395903 is about 9507.6760041558. The cubic root of 90395903 is about 448.7966251733.

The spelling of 90395903 in words is "ninety million, three hundred ninety-five thousand, nine hundred three".