6981223 has 4 divisors (see below), whose sum is σ = 6992568. Its totient is φ = 6969880.

The previous prime is 6981211. The next prime is 6981229. The reversal of 6981223 is 3221896.

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 6981223 - 2⁹ = 6980711 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam 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 (6981229) 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, 4693 + ... + 5998.

It is an arithmetic number, because the mean of its divisors is an integer number (1748142).

Almost surely, 2^6981223 is an apocalyptic number.

6981223 is a deficient number, since it is larger than the sum of its proper divisors (11345).

6981223 is a wasteful number, since it uses less digits than its factorization.

6981223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11344.

The product of its digits is 5184, while the sum is 31.

The square root of 6981223 is about 2642.2004087503. The cubic root of 6981223 is about 191.1219217364.

The spelling of 6981223 in words is "six million, nine hundred eighty-one thousand, two hundred twenty-three".