26931241 has 2 divisors, whose sum is σ = 26931242. Its totient is φ = 26931240.

The previous prime is 26931217. The next prime is 26931257. The reversal of 26931241 is 14213962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26677225 + 254016 = 5165^2 + 504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26931241 is a prime.

It is not a weakly prime, because it can be changed into another prime (26931271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13465620 + 13465621.

It is an arithmetic number, because the mean of its divisors is an integer number (13465621).

Almost surely, 2^26931241 is an apocalyptic number.

It is an amenable number.

26931241 is a deficient number, since it is larger than the sum of its proper divisors (1).

26931241 is an equidigital number, since it uses as much as digits as its factorization.

26931241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 26931241 is about 5189.5318671341. The cubic root of 26931241 is about 299.7451205533.

It can be divided in two parts, 26931 and 241, that added together give a palindrome (27172).

The spelling of 26931241 in words is "twenty-six million, nine hundred thirty-one thousand, two hundred forty-one".