26438039 has 2 divisors, whose sum is σ = 26438040. Its totient is φ = 26438038.

The previous prime is 26438023. The next prime is 26438047. The reversal of 26438039 is 93083462.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26438039 - 2⁴ = 26438023 is a prime.

It is a Sophie Germain 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 (26438099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13219019 + 13219020.

It is an arithmetic number, because the mean of its divisors is an integer number (13219020).

Almost surely, 2^26438039 is an apocalyptic number.

26438039 is a deficient number, since it is larger than the sum of its proper divisors (1).

26438039 is an equidigital number, since it uses as much as digits as its factorization.

26438039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 26438039 is about 5141.7933641872. The cubic root of 26438039 is about 297.9040537626.

The spelling of 26438039 in words is "twenty-six million, four hundred thirty-eight thousand, thirty-nine".