99000609 has 16 divisors (see below), whose sum is σ = 135522240. Its totient is φ = 64247040.

The previous prime is 99000599. The next prime is 99000619. The reversal of 99000609 is 90600099.

It is an interprime number because it is at equal distance from previous prime (99000599) and next prime (99000619).

It is a de Polignac number, because none of the positive numbers 2^k-99000609 is a prime.

It is a super-2 number, since 2×99000609² = 19602241164741762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99000609.

It is not an unprimeable number, because it can be changed into a prime (99000619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105189 + ... + 106125.

It is an arithmetic number, because the mean of its divisors is an integer number (8470140).

Almost surely, 2^99000609 is an apocalyptic number.

It is an amenable number.

99000609 is a deficient number, since it is larger than the sum of its proper divisors (36521631).

99000609 is a wasteful number, since it uses less digits than its factorization.

99000609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 99000609 is about 9949.9049744206. The cubic root of 99000609 is about 462.6074494933.

The spelling of 99000609 in words is "ninety-nine million, six hundred nine", and thus it is an aban number.