26893889 has 4 divisors (see below), whose sum is σ = 29338800. Its totient is φ = 24448980.

The previous prime is 26893883. The next prime is 26893903. The reversal of 26893889 is 98839862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26893889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26893889.

It is not an unprimeable number, because it can be changed into a prime (26893883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222439 + ... + 1222460.

It is an arithmetic number, because the mean of its divisors is an integer number (7334700).

Almost surely, 2^26893889 is an apocalyptic number.

It is an amenable number.

26893889 is a deficient number, since it is larger than the sum of its proper divisors (2444911).

26893889 is a wasteful number, since it uses less digits than its factorization.

26893889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444910.

The product of its digits is 1492992, while the sum is 53.

The square root of 26893889 is about 5185.9318352636. The cubic root of 26893889 is about 299.6064803296.

The spelling of 26893889 in words is "twenty-six million, eight hundred ninety-three thousand, eight hundred eighty-nine".