99319807 has 2 divisors, whose sum is σ = 99319808. Its totient is φ = 99319806.

The previous prime is 99319777. The next prime is 99319823. The reversal of 99319807 is 70891399.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99319807 - 2¹⁹ = 98795519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99319607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49659903 + 49659904.

It is an arithmetic number, because the mean of its divisors is an integer number (49659904).

Almost surely, 2^99319807 is an apocalyptic number.

99319807 is a deficient number, since it is larger than the sum of its proper divisors (1).

99319807 is an equidigital number, since it uses as much as digits as its factorization.

99319807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 99319807 is about 9965.9323196578. The cubic root of 99319807 is about 463.1040961266.

The spelling of 99319807 in words is "ninety-nine million, three hundred nineteen thousand, eight hundred seven".