26664241 has 2 divisors, whose sum is σ = 26664242. Its totient is φ = 26664240.

The previous prime is 26664223. The next prime is 26664289. The reversal of 26664241 is 14246662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15800625 + 10863616 = 3975^2 + 3296^2 .

It is a cyclic number.

It is not a de Polignac number, because 26664241 - 2²³ = 18275633 is a prime.

It is not a weakly prime, because it can be changed into another prime (26664221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13332120 + 13332121.

It is an arithmetic number, because the mean of its divisors is an integer number (13332121).

Almost surely, 2^26664241 is an apocalyptic number.

It is an amenable number.

26664241 is a deficient number, since it is larger than the sum of its proper divisors (1).

26664241 is an equidigital number, since it uses as much as digits as its factorization.

26664241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 31.

The square root of 26664241 is about 5163.7429254369. The cubic root of 26664241 is about 298.7512575007.

The spelling of 26664241 in words is "twenty-six million, six hundred sixty-four thousand, two hundred forty-one".