90903573 has 16 divisors (see below), whose sum is σ = 142594560. Its totient is φ = 57037248.

The previous prime is 90903557. The next prime is 90903599. The reversal of 90903573 is 37530909.

It is not a de Polignac number, because 90903573 - 2⁴ = 90903557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90903073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98565 + ... + 99482.

It is an arithmetic number, because the mean of its divisors is an integer number (8912160).

Almost surely, 2^90903573 is an apocalyptic number.

It is an amenable number.

90903573 is a deficient number, since it is larger than the sum of its proper divisors (51690987).

90903573 is a wasteful number, since it uses less digits than its factorization.

90903573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198073 (or 198067 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 90903573 is about 9534.3365264710. The cubic root of 90903573 is about 449.6352154849.

The spelling of 90903573 in words is "ninety million, nine hundred three thousand, five hundred seventy-three".