26788321 has 12 divisors (see below), whose sum is σ = 30989056. Its totient is φ = 22683960.

The previous prime is 26788319. The next prime is 26788327. The reversal of 26788321 is 12388762.

It is not a de Polignac number, because 26788321 - 2¹ = 26788319 is a prime.

It is a super-2 number, since 2×26788321² = 1435228283998082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26788327) 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 11 ways as a sum of consecutive naturals, for example, 120016 + ... + 120238.

Almost surely, 2^26788321 is an apocalyptic number.

It is an amenable number.

26788321 is a deficient number, since it is larger than the sum of its proper divisors (4200735).

26788321 is an equidigital number, since it uses as much as digits as its factorization.

26788321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 361 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 26788321 is about 5175.7435214663. The cubic root of 26788321 is about 299.2139458990.

It can be divided in two parts, 267 and 88321, that added together give a palindrome (88588).

The spelling of 26788321 in words is "twenty-six million, seven hundred eighty-eight thousand, three hundred twenty-one".