26339021 has 2 divisors, whose sum is σ = 26339022. Its totient is φ = 26339020.

The previous prime is 26339017. The next prime is 26339029. The reversal of 26339021 is 12093362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22458121 + 3880900 = 4739^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 26339021 - 2² = 26339017 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26339029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13169510 + 13169511.

It is an arithmetic number, because the mean of its divisors is an integer number (13169511).

Almost surely, 2^26339021 is an apocalyptic number.

It is an amenable number.

26339021 is a deficient number, since it is larger than the sum of its proper divisors (1).

26339021 is an equidigital number, since it uses as much as digits as its factorization.

26339021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 26339021 is about 5132.1555900031. The cubic root of 26339021 is about 297.5316765932.

The spelling of 26339021 in words is "twenty-six million, three hundred thirty-nine thousand, twenty-one".