90606684 has 72 divisors (see below), whose sum is σ = 247392768. Its totient is φ = 25734240.

The previous prime is 90606667. The next prime is 90606689. The reversal of 90606684 is 48660609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90606689) 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 23 ways as a sum of consecutive naturals, for example, 130779 + ... + 131469.

Almost surely, 2^90606684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90606684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123696384).

90606684 is an abundant number, since it is smaller than the sum of its proper divisors (156786084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90606684 is a wasteful number, since it uses less digits than its factorization.

90606684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 90606684 is about 9518.7543302682. The cubic root of 90606684 is about 449.1451821586.

The spelling of 90606684 in words is "ninety million, six hundred six thousand, six hundred eighty-four".