26663941 has 2 divisors, whose sum is σ = 26663942. Its totient is φ = 26663940.

The previous prime is 26663933. The next prime is 26663957. The reversal of 26663941 is 14936662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 1110916 = 5055^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 26663941 - 2³ = 26663933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26663941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26663911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13331970 + 13331971.

It is an arithmetic number, because the mean of its divisors is an integer number (13331971).

Almost surely, 2^26663941 is an apocalyptic number.

It is an amenable number.

26663941 is a deficient number, since it is larger than the sum of its proper divisors (1).

26663941 is an equidigital number, since it uses as much as digits as its factorization.

26663941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 26663941 is about 5163.7138766589. The cubic root of 26663941 is about 298.7501370774.

The spelling of 26663941 in words is "twenty-six million, six hundred sixty-three thousand, nine hundred forty-one".