26026387 has 4 divisors (see below), whose sum is σ = 26284176. Its totient is φ = 25768600.

The previous prime is 26026381. The next prime is 26026397. The reversal of 26026387 is 78362062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26026387 - 2¹⁵ = 25993619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26026381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128743 + ... + 128944.

It is an arithmetic number, because the mean of its divisors is an integer number (6571044).

Almost surely, 2^26026387 is an apocalyptic number.

26026387 is a deficient number, since it is larger than the sum of its proper divisors (257789).

26026387 is a wasteful number, since it uses less digits than its factorization.

26026387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257788.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 26026387 is about 5101.6063156618. The cubic root of 26026387 is about 296.3497926788.

The spelling of 26026387 in words is "twenty-six million, twenty-six thousand, three hundred eighty-seven".