26728847 has 8 divisors (see below), whose sum is σ = 27088512. Its totient is φ = 26371800.

The previous prime is 26728831. The next prime is 26728859. The reversal of 26728847 is 74882762.

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 26728847 - 2⁴ = 26728831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26728798 and 26728807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26725847) 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, 27158 + ... + 28124.

It is an arithmetic number, because the mean of its divisors is an integer number (3386064).

Almost surely, 2^26728847 is an apocalyptic number.

26728847 is a deficient number, since it is larger than the sum of its proper divisors (359665).

26728847 is a wasteful number, since it uses less digits than its factorization.

26728847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309.

The product of its digits is 301056, while the sum is 44.

The square root of 26728847 is about 5169.9948742721. The cubic root of 26728847 is about 298.9923488831.

The spelling of 26728847 in words is "twenty-six million, seven hundred twenty-eight thousand, eight hundred forty-seven".