83959199 has 4 divisors (see below), whose sum is σ = 83977536. Its totient is φ = 83940864.

The previous prime is 83959163. The next prime is 83959201. The reversal of 83959199 is 99195938.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 83959199 - 2¹² = 83955103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83959199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83959399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4127 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (20994384).

Almost surely, 2^83959199 is an apocalyptic number.

83959199 is a deficient number, since it is larger than the sum of its proper divisors (18337).

83959199 is an equidigital number, since it uses as much as digits as its factorization.

83959199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18336.

The product of its digits is 787320, while the sum is 53.

The square root of 83959199 is about 9162.9252425194. The cubic root of 83959199 is about 437.8809942668.

The spelling of 83959199 in words is "eighty-three million, nine hundred fifty-nine thousand, one hundred ninety-nine".