26865231 has 8 divisors (see below), whose sum is σ = 35859120. Its totient is φ = 17890752.

The previous prime is 26865227. The next prime is 26865233. The reversal of 26865231 is 13256862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26865231 - 2² = 26865227 is a prime.

It is a super-2 number, since 2×26865231² = 1443481273366722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26865192 and 26865201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26865233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236 + ... + 7433.

It is an arithmetic number, because the mean of its divisors is an integer number (4482390).

Almost surely, 2^26865231 is an apocalyptic number.

26865231 is a deficient number, since it is larger than the sum of its proper divisors (8993889).

26865231 is a wasteful number, since it uses less digits than its factorization.

26865231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705.

The product of its digits is 17280, while the sum is 33.

The square root of 26865231 is about 5183.1680466680. The cubic root of 26865231 is about 299.5000227610.

The spelling of 26865231 in words is "twenty-six million, eight hundred sixty-five thousand, two hundred thirty-one".