84399199 has 4 divisors (see below), whose sum is σ = 84481936. Its totient is φ = 84316464.

The previous prime is 84399181. The next prime is 84399221. The reversal of 84399199 is 99199348.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84399199 - 2¹¹ = 84397151 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 (84399149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39819 + ... + 41884.

It is an arithmetic number, because the mean of its divisors is an integer number (21120484).

Almost surely, 2^84399199 is an apocalyptic number.

84399199 is a deficient number, since it is larger than the sum of its proper divisors (82737).

84399199 is a wasteful number, since it uses less digits than its factorization.

84399199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82736.

The product of its digits is 629856, while the sum is 52.

The square root of 84399199 is about 9186.9036677218. The cubic root of 84399199 is about 438.6445875715.

The spelling of 84399199 in words is "eighty-four million, three hundred ninety-nine thousand, one hundred ninety-nine".