99320287 has 8 divisors (see below), whose sum is σ = 108421632. Its totient is φ = 90231000.

The previous prime is 99320281. The next prime is 99320297. The reversal of 99320287 is 78202399.

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 99320287 - 2¹¹ = 99318239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99320281) 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, 29778 + ... + 32944.

It is an arithmetic number, because the mean of its divisors is an integer number (13552704).

Almost surely, 2^99320287 is an apocalyptic number.

99320287 is a deficient number, since it is larger than the sum of its proper divisors (9101345).

99320287 is a wasteful number, since it uses less digits than its factorization.

99320287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 99320287 is about 9965.9564016706. The cubic root of 99320287 is about 463.1048421664.

The spelling of 99320287 in words is "ninety-nine million, three hundred twenty thousand, two hundred eighty-seven".