6912223 has 2 divisors, whose sum is σ = 6912224. Its totient is φ = 6912222.

The previous prime is 6912211. The next prime is 6912253. The reversal of 6912223 is 3222196.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6912223 - 2²¹ = 4815071 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6912203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3456111 + 3456112.

It is an arithmetic number, because the mean of its divisors is an integer number (3456112).

Almost surely, 2^6912223 is an apocalyptic number.

6912223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6912223 is an equidigital number, since it uses as much as digits as its factorization.

6912223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 6912223 is about 2629.1106861447. The cubic root of 6912223 is about 190.4901747699.

It can be divided in two parts, 691222 and 3, that multiplied together give a triangular number (2073666 = T₂₀₃₆).

The spelling of 6912223 in words is "six million, nine hundred twelve thousand, two hundred twenty-three".