26728679 has 8 divisors (see below), whose sum is σ = 27457920. Its totient is φ = 26003200.

The previous prime is 26728643. The next prime is 26728699. The reversal of 26728679 is 97682762.

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

It is a cyclic number.

It is not a de Polignac number, because 26728679 - 2⁸ = 26728423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26728609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18959 + ... + 20319.

It is an arithmetic number, because the mean of its divisors is an integer number (3432240).

Almost surely, 2^26728679 is an apocalyptic number.

26728679 is a deficient number, since it is larger than the sum of its proper divisors (729241).

26728679 is a wasteful number, since it uses less digits than its factorization.

26728679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881.

The product of its digits is 508032, while the sum is 47.

The square root of 26728679 is about 5169.9786266483. The cubic root of 26728679 is about 298.9917224585.

The spelling of 26728679 in words is "twenty-six million, seven hundred twenty-eight thousand, six hundred seventy-nine".