26286321 has 16 divisors (see below), whose sum is σ = 35794304. Its totient is φ = 17155584.

The previous prime is 26286319. The next prime is 26286341. The reversal of 26286321 is 12368262.

It is not a de Polignac number, because 26286321 - 2¹ = 26286319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26286341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29535 + ... + 30411.

It is an arithmetic number, because the mean of its divisors is an integer number (2237144).

Almost surely, 2^26286321 is an apocalyptic number.

It is an amenable number.

26286321 is a deficient number, since it is larger than the sum of its proper divisors (9507983).

26286321 is a wasteful number, since it uses less digits than its factorization.

26286321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080.

The product of its digits is 6912, while the sum is 30.

The square root of 26286321 is about 5127.0187243660. The cubic root of 26286321 is about 297.3331069674. Note that the first 3 decimals are identical.

The spelling of 26286321 in words is "twenty-six million, two hundred eighty-six thousand, three hundred twenty-one".