26486231 has 4 divisors (see below), whose sum is σ = 26694912. Its totient is φ = 26277552.

The previous prime is 26486189. The next prime is 26486233. The reversal of 26486231 is 13268462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13268462 = 2 ⋅6634231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26486231 is a prime.

It is a super-2 number, since 2×26486231² = 1403040865170722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26486233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104150 + ... + 104403.

It is an arithmetic number, because the mean of its divisors is an integer number (6673728).

Almost surely, 2^26486231 is an apocalyptic number.

26486231 is a deficient number, since it is larger than the sum of its proper divisors (208681).

26486231 is a wasteful number, since it uses less digits than its factorization.

26486231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208680.

The product of its digits is 13824, while the sum is 32.

The square root of 26486231 is about 5146.4775332260. The cubic root of 26486231 is about 298.0849531829.

The spelling of 26486231 in words is "twenty-six million, four hundred eighty-six thousand, two hundred thirty-one".