26259979 has 2 divisors, whose sum is σ = 26259980. Its totient is φ = 26259978.

The previous prime is 26259949. The next prime is 26259991. The reversal of 26259979 is 97995262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26259979 - 2⁷ = 26259851 is a prime.

It is not a weakly prime, because it can be changed into another prime (26259949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13129989 + 13129990.

It is an arithmetic number, because the mean of its divisors is an integer number (13129990).

Almost surely, 2^26259979 is an apocalyptic number.

26259979 is a deficient number, since it is larger than the sum of its proper divisors (1).

26259979 is an equidigital number, since it uses as much as digits as its factorization.

26259979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 49.

The square root of 26259979 is about 5124.4491411273. The cubic root of 26259979 is about 297.2337528017.

The spelling of 26259979 in words is "twenty-six million, two hundred fifty-nine thousand, nine hundred seventy-nine".