99043597 has 4 divisors (see below), whose sum is σ = 99082620. Its totient is φ = 99004576.

The previous prime is 99043573. The next prime is 99043601. The reversal of 99043597 is 79534099.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45549001 + 53494596 = 6749^2 + 7314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99043597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99043507) 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, 15418 + ... + 20875.

It is an arithmetic number, because the mean of its divisors is an integer number (24770655).

Almost surely, 2^99043597 is an apocalyptic number.

It is an amenable number.

99043597 is a deficient number, since it is larger than the sum of its proper divisors (39023).

99043597 is a wasteful number, since it uses less digits than its factorization.

99043597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39022.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 99043597 is about 9952.0649616047. The cubic root of 99043597 is about 462.6743975372.

The spelling of 99043597 in words is "ninety-nine million, forty-three thousand, five hundred ninety-seven".