26284387 has 2 divisors, whose sum is σ = 26284388. Its totient is φ = 26284386.

The previous prime is 26284367. The next prime is 26284417. The reversal of 26284387 is 78348262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26284387 - 2¹⁵ = 26251619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26284367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13142193 + 13142194.

It is an arithmetic number, because the mean of its divisors is an integer number (13142194).

Almost surely, 2^26284387 is an apocalyptic number.

26284387 is a deficient number, since it is larger than the sum of its proper divisors (1).

26284387 is an equidigital number, since it uses as much as digits as its factorization.

26284387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 26284387 is about 5126.8301122624. The cubic root of 26284387 is about 297.3258147547.

The spelling of 26284387 in words is "twenty-six million, two hundred eighty-four thousand, three hundred eighty-seven".