99965797 has 8 divisors (see below), whose sum is σ = 110448576. Its totient is φ = 89994432.

The previous prime is 99965773. The next prime is 99965819. The reversal of 99965797 is 79756999.

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

It is a cyclic number.

It is not a de Polignac number, because 99965797 - 2¹⁹ = 99441509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99965737) by changing a digit.

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, 127443 + ... + 128224.

It is an arithmetic number, because the mean of its divisors is an integer number (13806072).

Almost surely, 2^99965797 is an apocalyptic number.

It is an amenable number.

99965797 is a deficient number, since it is larger than the sum of its proper divisors (10482779).

99965797 is a wasteful number, since it uses less digits than its factorization.

99965797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255707.

The product of its digits is 9644670, while the sum is 61.

The square root of 99965797 is about 9998.2897037443. The cubic root of 99965797 is about 464.1059585726.

The spelling of 99965797 in words is "ninety-nine million, nine hundred sixty-five thousand, seven hundred ninety-seven".