26223247 has 2 divisors, whose sum is σ = 26223248. Its totient is φ = 26223246.

The previous prime is 26223203. The next prime is 26223257. The reversal of 26223247 is 74232262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26223247 - 2¹¹ = 26221199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26223257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13111623 + 13111624.

It is an arithmetic number, because the mean of its divisors is an integer number (13111624).

Almost surely, 2^26223247 is an apocalyptic number.

26223247 is a deficient number, since it is larger than the sum of its proper divisors (1).

26223247 is an equidigital number, since it uses as much as digits as its factorization.

26223247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 26223247 is about 5120.8638919620. The cubic root of 26223247 is about 297.0950996723.

The spelling of 26223247 in words is "twenty-six million, two hundred twenty-three thousand, two hundred forty-seven".