6999223 has 16 divisors (see below), whose sum is σ = 9241344. Its totient is φ = 5132160.

The previous prime is 6999203. The next prime is 6999241. The reversal of 6999223 is 3229996.

It is not a de Polignac number, because 6999223 - 2⁹ = 6998711 is a prime.

6999223 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6999203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365 + ... + 3982.

It is an arithmetic number, because the mean of its divisors is an integer number (577584).

Almost surely, 2^6999223 is an apocalyptic number.

6999223 is a deficient number, since it is larger than the sum of its proper divisors (2242121).

6999223 is a wasteful number, since it uses less digits than its factorization.

6999223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382.

The product of its digits is 52488, while the sum is 40.

The square root of 6999223 is about 2645.6044677918. The cubic root of 6999223 is about 191.2860401700.

The spelling of 6999223 in words is "six million, nine hundred ninety-nine thousand, two hundred twenty-three".