26374421 has 2 divisors, whose sum is σ = 26374422. Its totient is φ = 26374420.

The previous prime is 26374417. The next prime is 26374423. The reversal of 26374421 is 12447362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16851025 + 9523396 = 4105^2 + 3086^2 .

It is a cyclic number.

It is not a de Polignac number, because 26374421 - 2² = 26374417 is a prime.

It is a super-2 number, since 2×26374421² = 1391220166170482, which contains 22 as substring.

Together with 26374423, 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 (26374423) 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, 13187210 + 13187211.

It is an arithmetic number, because the mean of its divisors is an integer number (13187211).

Almost surely, 2^26374421 is an apocalyptic number.

It is an amenable number.

26374421 is a deficient number, since it is larger than the sum of its proper divisors (1).

26374421 is an equidigital number, since it uses as much as digits as its factorization.

26374421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 29.

The square root of 26374421 is about 5135.6032751762. The cubic root of 26374421 is about 297.6649124515.

The spelling of 26374421 in words is "twenty-six million, three hundred seventy-four thousand, four hundred twenty-one".