26711231 has 2 divisors, whose sum is σ = 26711232. Its totient is φ = 26711230.

The previous prime is 26711221. The next prime is 26711249. The reversal of 26711231 is 13211762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26711231 - 2¹⁰ = 26710207 is a prime.

It is a super-2 number, since 2×26711231² = 1426979723070722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26711197 and 26711206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26711221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13355615 + 13355616.

It is an arithmetic number, because the mean of its divisors is an integer number (13355616).

Almost surely, 2^26711231 is an apocalyptic number.

26711231 is a deficient number, since it is larger than the sum of its proper divisors (1).

26711231 is an equidigital number, since it uses as much as digits as its factorization.

26711231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 26711231 is about 5168.2909167345. The cubic root of 26711231 is about 298.9266494941.

Adding to 26711231 its reverse (13211762), we get a palindrome (39922993).

The spelling of 26711231 in words is "twenty-six million, seven hundred eleven thousand, two hundred thirty-one".