26809682 has 8 divisors (see below), whose sum is σ = 41301516. Its totient is φ = 13042512.

The previous prime is 26809681. The next prime is 26809687. The reversal of 26809682 is 28690862.

It can be written as a sum of positive squares in 2 ways, for example, as 24790441 + 2019241 = 4979^2 + 1421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×26809682² = 1437518097882248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26809681) 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 3 ways as a sum of consecutive naturals, for example, 181073 + ... + 181220.

Almost surely, 2^26809682 is an apocalyptic number.

26809682 is a deficient number, since it is larger than the sum of its proper divisors (14491834).

26809682 is a wasteful number, since it uses less digits than its factorization.

26809682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362332.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 26809682 is about 5177.8066785078. The cubic root of 26809682 is about 299.2934558092.

The spelling of 26809682 in words is "twenty-six million, eight hundred nine thousand, six hundred eighty-two".