26426865 has 16 divisors (see below), whose sum is σ = 42372288. Its totient is φ = 14064576.

The previous prime is 26426863. The next prime is 26426879. The reversal of 26426865 is 56862462.

It is not a de Polignac number, because 26426865 - 2¹ = 26426863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26426861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6774 + ... + 9936.

It is an arithmetic number, because the mean of its divisors is an integer number (2648268).

Almost surely, 2^26426865 is an apocalyptic number.

It is an amenable number.

26426865 is a deficient number, since it is larger than the sum of its proper divisors (15945423).

26426865 is a wasteful number, since it uses less digits than its factorization.

26426865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728.

The product of its digits is 138240, while the sum is 39.

The square root of 26426865 is about 5140.7066634851. The cubic root of 26426865 is about 297.8620782720.

The spelling of 26426865 in words is "twenty-six million, four hundred twenty-six thousand, eight hundred sixty-five".