26641469 has 2 divisors, whose sum is σ = 26641470. Its totient is φ = 26641468.

The previous prime is 26641441. The next prime is 26641471. The reversal of 26641469 is 96414662.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20702500 + 5938969 = 4550^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 26641469 - 2⁸ = 26641213 is a prime.

It is a super-2 number, since 2×26641469² = 1419535740955922, which contains 22 as substring.

Together with 26641471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26643469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13320734 + 13320735.

It is an arithmetic number, because the mean of its divisors is an integer number (13320735).

Almost surely, 2^26641469 is an apocalyptic number.

It is an amenable number.

26641469 is a deficient number, since it is larger than the sum of its proper divisors (1).

26641469 is an equidigital number, since it uses as much as digits as its factorization.

26641469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 26641469 is about 5161.5374647483. The cubic root of 26641469 is about 298.6661859967. Note that the first 3 decimals are identical.

The spelling of 26641469 in words is "twenty-six million, six hundred forty-one thousand, four hundred sixty-nine".