99000947 has 4 divisors (see below), whose sum is σ = 103305360. Its totient is φ = 94696536.

The previous prime is 99000919. The next prime is 99000953. The reversal of 99000947 is 74900099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74900099 = 37 ⋅2024327.

It is a cyclic number.

It is not a de Polignac number, because 99000947 - 2⁶ = 99000883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99000947.

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 3 ways as a sum of consecutive naturals, for example, 2152172 + ... + 2152217.

It is an arithmetic number, because the mean of its divisors is an integer number (25826340).

Almost surely, 2^99000947 is an apocalyptic number.

99000947 is a deficient number, since it is larger than the sum of its proper divisors (4304413).

99000947 is a wasteful number, since it uses less digits than its factorization.

99000947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304412.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 99000947 is about 9949.9219594929. The cubic root of 99000947 is about 462.6079759585.

The spelling of 99000947 in words is "ninety-nine million, nine hundred forty-seven", and thus it is an aban number.