99000918 has 24 divisors (see below), whose sum is σ = 221422656. Its totient is φ = 31935600.

The previous prime is 99000917. The next prime is 99000919. The reversal of 99000918 is 81900099.

It is an interprime number because it is at equal distance from previous prime (99000917) and next prime (99000919).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99000917) 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, 88153 + ... + 89268.

It is an arithmetic number, because the mean of its divisors is an integer number (9225944).

Almost surely, 2^99000918 is an apocalyptic number.

99000918 is an abundant number, since it is smaller than the sum of its proper divisors (122421738).

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

99000918 is a wasteful number, since it uses less digits than its factorization.

99000918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177460 (or 177457 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 99000918 is about 9949.9205021950. The cubic root of 99000918 is about 462.6079307885.

It can be divided in two parts, 9900091 and 8, that added together give a palindrome (9900099).

The spelling of 99000918 in words is "ninety-nine million, nine hundred eighteen", and thus it is an aban number.