26243039 has 2 divisors, whose sum is σ = 26243040. Its totient is φ = 26243038.

The previous prime is 26243017. The next prime is 26243071. The reversal of 26243039 is 93034262.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26243039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26243839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13121519 + 13121520.

It is an arithmetic number, because the mean of its divisors is an integer number (13121520).

Almost surely, 2^26243039 is an apocalyptic number.

26243039 is a deficient number, since it is larger than the sum of its proper divisors (1).

26243039 is an equidigital number, since it uses as much as digits as its factorization.

26243039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 26243039 is about 5122.7960138971. The cubic root of 26243039 is about 297.1698250676.

The spelling of 26243039 in words is "twenty-six million, two hundred forty-three thousand, thirty-nine".