99965806 has 8 divisors (see below), whose sum is σ = 150609960. Its totient is φ = 49762488.

The previous prime is 99965773. The next prime is 99965819. The reversal of 99965806 is 60856999.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109641 + ... + 110548.

It is an arithmetic number, because the mean of its divisors is an integer number (18826245).

Almost surely, 2^99965806 is an apocalyptic number.

99965806 is a deficient number, since it is larger than the sum of its proper divisors (50644154).

99965806 is a wasteful number, since it uses less digits than its factorization.

99965806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220418.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The square root of 99965806 is about 9998.2901538213. The cubic root of 99965806 is about 464.1059725005.

The spelling of 99965806 in words is "ninety-nine million, nine hundred sixty-five thousand, eight hundred six".