26285217 has 24 divisors (see below), whose sum is σ = 41056416. Its totient is φ = 14914368.

The previous prime is 26285201. The next prime is 26285221. The reversal of 26285217 is 71258262.

It is not a de Polignac number, because 26285217 - 2⁴ = 26285201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26285257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23413 + ... + 24509.

It is an arithmetic number, because the mean of its divisors is an integer number (1710684).

Almost surely, 2^26285217 is an apocalyptic number.

It is an amenable number.

26285217 is a deficient number, since it is larger than the sum of its proper divisors (14771199).

26285217 is a wasteful number, since it uses less digits than its factorization.

26285217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277 (or 1270 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 26285217 is about 5126.9110583274. The cubic root of 26285217 is about 297.3289443417.

The spelling of 26285217 in words is "twenty-six million, two hundred eighty-five thousand, two hundred seventeen".