99565849 has 4 divisors (see below), whose sum is σ = 99636480. Its totient is φ = 99495220.

The previous prime is 99565811. The next prime is 99565859. The reversal of 99565849 is 94856599.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94856599 = 3889 ⋅24391.

It is a cyclic number.

It is not a de Polignac number, because 99565849 - 2⁹ = 99565337 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 99565849.

It is not an unprimeable number, because it can be changed into a prime (99565859) 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, 33157 + ... + 36034.

It is an arithmetic number, because the mean of its divisors is an integer number (24909120).

Almost surely, 2^99565849 is an apocalyptic number.

It is an amenable number.

99565849 is a deficient number, since it is larger than the sum of its proper divisors (70631).

99565849 is a wasteful number, since it uses less digits than its factorization.

99565849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70630.

The product of its digits is 3499200, while the sum is 55.

The square root of 99565849 is about 9978.2688378295. The cubic root of 99565849 is about 463.4861921102.

The spelling of 99565849 in words is "ninety-nine million, five hundred sixty-five thousand, eight hundred forty-nine".