26826139 has 2 divisors, whose sum is σ = 26826140. Its totient is φ = 26826138.

The previous prime is 26826133. The next prime is 26826161. The reversal of 26826139 is 93162862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26826139 - 2⁹ = 26825627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26826098 and 26826107.

It is not a weakly prime, because it can be changed into another prime (26826133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13413069 + 13413070.

It is an arithmetic number, because the mean of its divisors is an integer number (13413070).

Almost surely, 2^26826139 is an apocalyptic number.

26826139 is a deficient number, since it is larger than the sum of its proper divisors (1).

26826139 is an equidigital number, since it uses as much as digits as its factorization.

26826139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 26826139 is about 5179.3956211126. The cubic root of 26826139 is about 299.3546832533.

The spelling of 26826139 in words is "twenty-six million, eight hundred twenty-six thousand, one hundred thirty-nine".