26783231 has 2 divisors, whose sum is σ = 26783232. Its totient is φ = 26783230.

The previous prime is 26783221. The next prime is 26783243. The reversal of 26783231 is 13238762.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26783231 - 2¹⁴ = 26766847 is a prime.

It is a super-2 number, since 2×26783231² = 1434682925598722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26783221) 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 as a sum of consecutive naturals, namely, 13391615 + 13391616.

It is an arithmetic number, because the mean of its divisors is an integer number (13391616).

Almost surely, 2^26783231 is an apocalyptic number.

26783231 is a deficient number, since it is larger than the sum of its proper divisors (1).

26783231 is an equidigital number, since it uses as much as digits as its factorization.

26783231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 26783231 is about 5175.2517813146. The cubic root of 26783231 is about 299.1949936666.

The spelling of 26783231 in words is "twenty-six million, seven hundred eighty-three thousand, two hundred thirty-one".