99000897 has 4 divisors (see below), whose sum is σ = 132001200. Its totient is φ = 66000596.

The previous prime is 99000893. The next prime is 99000917. The reversal of 99000897 is 79800099.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99000897 - 2² = 99000893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99000893) 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, 16500147 + ... + 16500152.

It is an arithmetic number, because the mean of its divisors is an integer number (33000300).

Almost surely, 2^99000897 is an apocalyptic number.

It is an amenable number.

99000897 is a deficient number, since it is larger than the sum of its proper divisors (33000303).

99000897 is a wasteful number, since it uses less digits than its factorization.

99000897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33000302.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 99000897 is about 9949.9194469101. The cubic root of 99000897 is about 462.6078980791.

The spelling of 99000897 in words is "ninety-nine million, eight hundred ninety-seven", and thus it is an aban number.