26782393 has 4 divisors (see below), whose sum is σ = 29217168. Its totient is φ = 24347620.

The previous prime is 26782351. The next prime is 26782403. The reversal of 26782393 is 39328762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26782393 - 2¹⁷ = 26651321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26782333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217371 + ... + 1217392.

It is an arithmetic number, because the mean of its divisors is an integer number (7304292).

Almost surely, 2^26782393 is an apocalyptic number.

It is an amenable number.

26782393 is a deficient number, since it is larger than the sum of its proper divisors (2434775).

26782393 is a wasteful number, since it uses less digits than its factorization.

26782393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434774.

The product of its digits is 108864, while the sum is 40.

The square root of 26782393 is about 5175.1708184368. The cubic root of 26782393 is about 299.1918732064.

The spelling of 26782393 in words is "twenty-six million, seven hundred eighty-two thousand, three hundred ninety-three".