90603900 has 144 divisors (see below), whose sum is σ = 304147200. Its totient is φ = 23094720.

The previous prime is 90603889. The next prime is 90603901. The reversal of 90603900 is 930609.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90603901) 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 47 ways as a sum of consecutive naturals, for example, 61371 + ... + 62829.

Almost surely, 2^90603900 is an apocalyptic number.

90603900 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90603900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152073600).

90603900 is an abundant number, since it is smaller than the sum of its proper divisors (213543300).

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

90603900 is a wasteful number, since it uses less digits than its factorization.

90603900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 90603900 is about 9518.6080915226. The cubic root of 90603900 is about 449.1405819351.

The spelling of 90603900 in words is "ninety million, six hundred three thousand, nine hundred".