84399223 has 4 divisors (see below), whose sum is σ = 84436560. Its totient is φ = 84361888.

The previous prime is 84399221. The next prime is 84399229. The reversal of 84399223 is 32299348.

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 84399223 - 2¹ = 84399221 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84399221) 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, 15043 + ... + 19876.

It is an arithmetic number, because the mean of its divisors is an integer number (21109140).

Almost surely, 2^84399223 is an apocalyptic number.

84399223 is a deficient number, since it is larger than the sum of its proper divisors (37337).

84399223 is a wasteful number, since it uses less digits than its factorization.

84399223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37336.

The product of its digits is 93312, while the sum is 40.

The square root of 84399223 is about 9186.9049739289. The cubic root of 84399223 is about 438.6446291496.

The spelling of 84399223 in words is "eighty-four million, three hundred ninety-nine thousand, two hundred twenty-three".