26794021 has 2 divisors, whose sum is σ = 26794022. Its totient is φ = 26794020.

The previous prime is 26794003. The next prime is 26794043. The reversal of 26794021 is 12049762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 1240996 = 5055^2 + 1114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26794021 is a prime.

It is a super-2 number, since 2×26794021² = 1435839122696882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26794081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13397010 + 13397011.

It is an arithmetic number, because the mean of its divisors is an integer number (13397011).

Almost surely, 2^26794021 is an apocalyptic number.

It is an amenable number.

26794021 is a deficient number, since it is larger than the sum of its proper divisors (1).

26794021 is an equidigital number, since it uses as much as digits as its factorization.

26794021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 26794021 is about 5176.2941377012. The cubic root of 26794021 is about 299.2351665713.

The spelling of 26794021 in words is "twenty-six million, seven hundred ninety-four thousand, twenty-one".