90908573 has 12 divisors (see below), whose sum is σ = 106293600. Its totient is φ = 77521752.

The previous prime is 90908563. The next prime is 90908611. The reversal of 90908573 is 37580909.

It is not a de Polignac number, because 90908573 - 2¹⁰ = 90907549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90908573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90908563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5090 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (8857800).

Almost surely, 2^90908573 is an apocalyptic number.

It is an amenable number.

90908573 is a deficient number, since it is larger than the sum of its proper divisors (15385027).

90908573 is a wasteful number, since it uses less digits than its factorization.

90908573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9536 (or 9529 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 90908573 is about 9534.5987330354. The cubic root of 90908573 is about 449.6434591464.

The spelling of 90908573 in words is "ninety million, nine hundred eight thousand, five hundred seventy-three".