2691223 has 2 divisors, whose sum is σ = 2691224. Its totient is φ = 2691222.

The previous prime is 2691209. The next prime is 2691233. The reversal of 2691223 is 3221962.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2691223 - 2⁵ = 2691191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2691233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345611 + 1345612.

It is an arithmetic number, because the mean of its divisors is an integer number (1345612).

2^2691223 is an apocalyptic number.

2691223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2691223 is an equidigital number, since it uses as much as digits as its factorization.

2691223 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 2691223 is about 1640.4947424481. The cubic root of 2691223 is about 139.0966151961.

The spelling of 2691223 in words is "two million, six hundred ninety-one thousand, two hundred twenty-three".