26879889 has 16 divisors (see below), whose sum is σ = 37851200. Its totient is φ = 16920576.

The previous prime is 26879863. The next prime is 26879899. The reversal of 26879889 is 98897862.

It is not a de Polignac number, because 26879889 - 2⁵ = 26879857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26879849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22737 + ... + 23889.

It is an arithmetic number, because the mean of its divisors is an integer number (2365700).

Almost surely, 2^26879889 is an apocalyptic number.

It is an amenable number.

26879889 is a deficient number, since it is larger than the sum of its proper divisors (10971311).

26879889 is a wasteful number, since it uses less digits than its factorization.

26879889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584.

The product of its digits is 3483648, while the sum is 57.

The square root of 26879889 is about 5184.5818539203. The cubic root of 26879889 is about 299.5544831544.

The spelling of 26879889 in words is "twenty-six million, eight hundred seventy-nine thousand, eight hundred eighty-nine".