99996565 has 8 divisors (see below), whose sum is σ = 121184568. Its totient is φ = 79204800.

The previous prime is 99996551. The next prime is 99996577. The reversal of 99996565 is 56569999.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62615569 + 37380996 = 7913^2 + 6114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99996565 - 2²⁵ = 66442133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98502 + ... + 99511.

It is an arithmetic number, because the mean of its divisors is an integer number (15148071).

Almost surely, 2^99996565 is an apocalyptic number.

It is an amenable number.

99996565 is a deficient number, since it is larger than the sum of its proper divisors (21188003).

99996565 is a wasteful number, since it uses less digits than its factorization.

99996565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198119.

The product of its digits is 5904900, while the sum is 58.

The square root of 99996565 is about 9999.8282485251. The cubic root of 99996565 is about 464.1535686812.

The spelling of 99996565 in words is "ninety-nine million, nine hundred ninety-six thousand, five hundred sixty-five".