99996399 has 6 divisors (see below), whose sum is σ = 144439256. Its totient is φ = 66664260.

The previous prime is 99996389. The next prime is 99996409. The reversal of 99996399 is 99369999.

It is an interprime number because it is at equal distance from previous prime (99996389) and next prime (99996409).

It is not a de Polignac number, because 99996399 - 2⁷ = 99996271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99996389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5555347 + ... + 5555364.

Almost surely, 2^99996399 is an apocalyptic number.

99996399 is a deficient number, since it is larger than the sum of its proper divisors (44442857).

99996399 is a wasteful number, since it uses less digits than its factorization.

99996399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110717 (or 11110714 counting only the distinct ones).

The product of its digits is 9565938, while the sum is 63.

The square root of 99996399 is about 9999.8199483791. The cubic root of 99996399 is about 464.1533118406.

The spelling of 99996399 in words is "ninety-nine million, nine hundred ninety-six thousand, three hundred ninety-nine".