26040247 has 2 divisors, whose sum is σ = 26040248. Its totient is φ = 26040246.

The previous prime is 26040233. The next prime is 26040251. The reversal of 26040247 is 74204062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26040247 - 2¹⁵ = 26007479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26040227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13020123 + 13020124.

It is an arithmetic number, because the mean of its divisors is an integer number (13020124).

Almost surely, 2^26040247 is an apocalyptic number.

26040247 is a deficient number, since it is larger than the sum of its proper divisors (1).

26040247 is an equidigital number, since it uses as much as digits as its factorization.

26040247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 26040247 is about 5102.9645305450. The cubic root of 26040247 is about 296.4023890332.

The spelling of 26040247 in words is "twenty-six million, forty thousand, two hundred forty-seven".