99013900 has 36 divisors (see below), whose sum is σ = 216968752. Its totient is φ = 39216960.

The previous prime is 99013891. The next prime is 99013909. The reversal of 99013900 is 931099.

It is an interprime number because it is at equal distance from previous prime (99013891) and next prime (99013909).

It is not an unprimeable number, because it can be changed into a prime (99013909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5494 + ... + 15106.

Almost surely, 2^99013900 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 99013900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108484376).

99013900 is an abundant number, since it is smaller than the sum of its proper divisors (117954852).

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

99013900 is a wasteful number, since it uses less digits than its factorization.

99013900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9730 (or 9723 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 99013900 is about 9950.5728478314. The cubic root of 99013900 is about 462.6281505124.

Adding to 99013900 its reverse (931099), we get a palindrome (99944999).

The spelling of 99013900 in words is "ninety-nine million, thirteen thousand, nine hundred".