26065639 has 2 divisors, whose sum is σ = 26065640. Its totient is φ = 26065638.

The previous prime is 26065631. The next prime is 26065643. The reversal of 26065639 is 93656062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26065639 - 2³ = 26065631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26065598 and 26065607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26065631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13032819 + 13032820.

It is an arithmetic number, because the mean of its divisors is an integer number (13032820).

Almost surely, 2^26065639 is an apocalyptic number.

26065639 is a deficient number, since it is larger than the sum of its proper divisors (1).

26065639 is an equidigital number, since it uses as much as digits as its factorization.

26065639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 26065639 is about 5105.4518898918. The cubic root of 26065639 is about 296.4986989811.

The spelling of 26065639 in words is "twenty-six million, sixty-five thousand, six hundred thirty-nine".