26326997 has 2 divisors, whose sum is σ = 26326998. Its totient is φ = 26326996.

The previous prime is 26326991. The next prime is 26327011. The reversal of 26326997 is 79962362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18267076 + 8059921 = 4274^2 + 2839^2 .

It is a cyclic number.

It is not a de Polignac number, because 26326997 - 2⁶ = 26326933 is a prime.

It is a super-2 number, since 2×26326997² = 1386221542076018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26326991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13163498 + 13163499.

It is an arithmetic number, because the mean of its divisors is an integer number (13163499).

Almost surely, 2^26326997 is an apocalyptic number.

It is an amenable number.

26326997 is a deficient number, since it is larger than the sum of its proper divisors (1).

26326997 is an equidigital number, since it uses as much as digits as its factorization.

26326997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 44.

The square root of 26326997 is about 5130.9840186849. The cubic root of 26326997 is about 297.4863944064.

The spelling of 26326997 in words is "twenty-six million, three hundred twenty-six thousand, nine hundred ninety-seven".