26830247 has 2 divisors, whose sum is σ = 26830248. Its totient is φ = 26830246.

The previous prime is 26830231. The next prime is 26830253. The reversal of 26830247 is 74203862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26830247 - 2⁴ = 26830231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26830747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13415123 + 13415124.

It is an arithmetic number, because the mean of its divisors is an integer number (13415124).

Almost surely, 2^26830247 is an apocalyptic number.

26830247 is a deficient number, since it is larger than the sum of its proper divisors (1).

26830247 is an equidigital number, since it uses as much as digits as its factorization.

26830247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 26830247 is about 5179.7921772982. The cubic root of 26830247 is about 299.3699629559.

The spelling of 26830247 in words is "twenty-six million, eight hundred thirty thousand, two hundred forty-seven".