26878871 has 4 divisors (see below), whose sum is σ = 27050232. Its totient is φ = 26707512.

The previous prime is 26878849. The next prime is 26878879. The reversal of 26878871 is 17887862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26878871 - 2¹⁰ = 26877847 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 (26878879) 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 3 ways as a sum of consecutive naturals, for example, 85445 + ... + 85758.

It is an arithmetic number, because the mean of its divisors is an integer number (6762558).

Almost surely, 2^26878871 is an apocalyptic number.

26878871 is a deficient number, since it is larger than the sum of its proper divisors (171361).

26878871 is a wasteful number, since it uses less digits than its factorization.

26878871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171360.

The product of its digits is 301056, while the sum is 47.

The square root of 26878871 is about 5184.4836772817. The cubic root of 26878871 is about 299.5507015129.

The spelling of 26878871 in words is "twenty-six million, eight hundred seventy-eight thousand, eight hundred seventy-one".