99999347 has 6 divisors (see below), whose sum is σ = 116325828. Its totient is φ = 85713684.

The previous prime is 99999343. The next prime is 99999353. The reversal of 99999347 is 74399999.

It is not a de Polignac number, because 99999347 - 2² = 99999343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99999343) 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, 1020353 + ... + 1020450.

It is an arithmetic number, because the mean of its divisors is an integer number (19387638).

Almost surely, 2^99999347 is an apocalyptic number.

99999347 is a deficient number, since it is larger than the sum of its proper divisors (16326481).

99999347 is a wasteful number, since it uses less digits than its factorization.

99999347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040817 (or 2040810 counting only the distinct ones).

The product of its digits is 4960116, while the sum is 59.

The square root of 99999347 is about 9999.9673499467. The cubic root of 99999347 is about 464.1578730399.

The spelling of 99999347 in words is "ninety-nine million, nine hundred ninety-nine thousand, three hundred forty-seven".