26686065 has 32 divisors (see below), whose sum is σ = 50123520. Its totient is φ = 11867904.

The previous prime is 26686063. The next prime is 26686081. The reversal of 26686065 is 56068662.

It is not a de Polignac number, because 26686065 - 2¹ = 26686063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26686063) 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 31 ways as a sum of consecutive naturals, for example, 451 + ... + 7319.

It is an arithmetic number, because the mean of its divisors is an integer number (1566360).

Almost surely, 2^26686065 is an apocalyptic number.

It is an amenable number.

26686065 is a deficient number, since it is larger than the sum of its proper divisors (23437455).

26686065 is a wasteful number, since it uses less digits than its factorization.

26686065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 26686065 is about 5165.8556890413. The cubic root of 26686065 is about 298.8327420308.

The spelling of 26686065 in words is "twenty-six million, six hundred eighty-six thousand, sixty-five".