84006899 has 4 divisors (see below), whose sum is σ = 84131664. Its totient is φ = 83882136.

The previous prime is 84006889. The next prime is 84006913. The reversal of 84006899 is 99860048.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84006899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84006829) 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, 61367 + ... + 62720.

It is an arithmetic number, because the mean of its divisors is an integer number (21032916).

Almost surely, 2^84006899 is an apocalyptic number.

84006899 is a deficient number, since it is larger than the sum of its proper divisors (124765).

84006899 is a wasteful number, since it uses less digits than its factorization.

84006899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124764.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 84006899 is about 9165.5277534902. The cubic root of 84006899 is about 437.9639034632.

The spelling of 84006899 in words is "eighty-four million, six thousand, eight hundred ninety-nine".