90889603 has 4 divisors (see below), whose sum is σ = 103873840. Its totient is φ = 77905368.

The previous prime is 90889571. The next prime is 90889607. The reversal of 90889603 is 30698809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90889603 - 2⁵ = 90889571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90889603.

It is not an unprimeable number, because it can be changed into a prime (90889607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6492108 + ... + 6492121.

It is an arithmetic number, because the mean of its divisors is an integer number (25968460).

Almost surely, 2^90889603 is an apocalyptic number.

90889603 is a deficient number, since it is larger than the sum of its proper divisors (12984237).

90889603 is a wasteful number, since it uses less digits than its factorization.

90889603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984236.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 90889603 is about 9533.6038831074. The cubic root of 90889603 is about 449.6121810923.

The spelling of 90889603 in words is "ninety million, eight hundred eighty-nine thousand, six hundred three".