26728779 has 48 divisors (see below), whose sum is σ = 45726464. Its totient is φ = 13590720.

The previous prime is 26728769. The next prime is 26728787. The reversal of 26728779 is 97782762.

It is not a de Polignac number, because 26728779 - 2¹⁵ = 26696011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26728729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170169 + ... + 170325.

Almost surely, 2^26728779 is an apocalyptic number.

26728779 is a deficient number, since it is larger than the sum of its proper divisors (18997685).

26728779 is a wasteful number, since it uses less digits than its factorization.

26728779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 245 counting only the distinct ones).

The product of its digits is 592704, while the sum is 48.

The square root of 26728779 is about 5169.9882978591. The cubic root of 26728779 is about 298.9920953306.

The spelling of 26728779 in words is "twenty-six million, seven hundred twenty-eight thousand, seven hundred seventy-nine".