26894287 has 16 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 22767360.

The previous prime is 26894261. The next prime is 26894297. The reversal of 26894287 is 78249862.

It is not a de Polignac number, because 26894287 - 2⁷ = 26894159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26894297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30087 + ... + 30967.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2^26894287 is an apocalyptic number.

26894287 is a deficient number, since it is larger than the sum of its proper divisors (4857713).

26894287 is an frugal number, since it uses more digits than its factorization.

26894287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 977 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 26894287 is about 5185.9702081674. The cubic root of 26894287 is about 299.6079582711.

The spelling of 26894287 in words is "twenty-six million, eight hundred ninety-four thousand, two hundred eighty-seven".