99090396 has 72 divisors (see below), whose sum is σ = 265072080. Its totient is φ = 31124736.

The previous prime is 99090391. The next prime is 99090401. The reversal of 99090396 is 69309099.

It is an interprime number because it is at equal distance from previous prime (99090391) and next prime (99090401).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99090391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216600 + ... + 217056.

Almost surely, 2^99090396 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 99090396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132536040).

99090396 is an abundant number, since it is smaller than the sum of its proper divisors (165981684).

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

99090396 is a wasteful number, since it uses less digits than its factorization.

99090396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The square root of 99090396 is about 9954.4159045119. The cubic root of 99090396 is about 462.7472586822.

The spelling of 99090396 in words is "ninety-nine million, ninety thousand, three hundred ninety-six".