90997606 has 12 divisors (see below), whose sum is σ = 158781708. Its totient is φ = 38998932.

The previous prime is 90997597. The next prime is 90997607. The reversal of 90997606 is 60679909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90997607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 464176 + ... + 464371.

It is an arithmetic number, because the mean of its divisors is an integer number (13231809).

Almost surely, 2^90997606 is an apocalyptic number.

90997606 is a deficient number, since it is larger than the sum of its proper divisors (67784102).

90997606 is a wasteful number, since it uses less digits than its factorization.

90997606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928563 (or 928556 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 90997606 is about 9539.2665336492. The cubic root of 90997606 is about 449.7902001443.

The spelling of 90997606 in words is "ninety million, nine hundred ninety-seven thousand, six hundred six".