26782791 has 16 divisors (see below), whose sum is σ = 42129408. Its totient is φ = 14810400.

The previous prime is 26782753. The next prime is 26782801. The reversal of 26782791 is 19728762.

It is not a de Polignac number, because 26782791 - 2⁷ = 26782663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26782711) 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, 19920 + ... + 21221.

It is an arithmetic number, because the mean of its divisors is an integer number (2633088).

Almost surely, 2^26782791 is an apocalyptic number.

26782791 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26782791 is a deficient number, since it is larger than the sum of its proper divisors (15346617).

26782791 is a wasteful number, since it uses less digits than its factorization.

26782791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41182.

The product of its digits is 84672, while the sum is 42.

The square root of 26782791 is about 5175.2092711310. The cubic root of 26782791 is about 299.1933552470.

The spelling of 26782791 in words is "twenty-six million, seven hundred eighty-two thousand, seven hundred ninety-one".