99768297 has 16 divisors (see below), whose sum is σ = 141949760. Its totient is φ = 62145792.

The previous prime is 99768289. The next prime is 99768301. The reversal of 99768297 is 79286799.

It is not a de Polignac number, because 99768297 - 2³ = 99768289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (99768217) 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 15 ways as a sum of consecutive naturals, for example, 7828 + ... + 16149.

It is an arithmetic number, because the mean of its divisors is an integer number (8871860).

Almost surely, 2^99768297 is an apocalyptic number.

It is an amenable number.

99768297 is a deficient number, since it is larger than the sum of its proper divisors (42181463).

99768297 is a wasteful number, since it uses less digits than its factorization.

99768297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24072.

The product of its digits is 3429216, while the sum is 57.

The square root of 99768297 is about 9988.4081314292. The cubic root of 99768297 is about 463.8001161078.

The spelling of 99768297 in words is "ninety-nine million, seven hundred sixty-eight thousand, two hundred ninety-seven".