26426287 has 16 divisors (see below), whose sum is σ = 28385280. Its totient is φ = 24548832.

The previous prime is 26426261. The next prime is 26426297. The reversal of 26426287 is 78262462.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26426287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26426297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208018 + ... + 208144.

It is an arithmetic number, because the mean of its divisors is an integer number (1774080).

Almost surely, 2^26426287 is an apocalyptic number.

26426287 is a deficient number, since it is larger than the sum of its proper divisors (1958993).

26426287 is a wasteful number, since it uses less digits than its factorization.

26426287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342.

The product of its digits is 64512, while the sum is 37.

The square root of 26426287 is about 5140.6504452258. The cubic root of 26426287 is about 297.8599066746.

The spelling of 26426287 in words is "twenty-six million, four hundred twenty-six thousand, two hundred eighty-seven".