26889853 has 2 divisors, whose sum is σ = 26889854. Its totient is φ = 26889852.

The previous prime is 26889827. The next prime is 26889859. The reversal of 26889853 is 35898862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23639044 + 3250809 = 4862^2 + 1803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26889853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26889797 and 26889806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26889859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13444926 + 13444927.

It is an arithmetic number, because the mean of its divisors is an integer number (13444927).

Almost surely, 2^26889853 is an apocalyptic number.

It is an amenable number.

26889853 is a deficient number, since it is larger than the sum of its proper divisors (1).

26889853 is an equidigital number, since it uses as much as digits as its factorization.

26889853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The square root of 26889853 is about 5185.5426909823. The cubic root of 26889853 is about 299.5914921384.

Subtracting 26889853 from its reverse (35898862), we obtain a palindrome (9009009).

The spelling of 26889853 in words is "twenty-six million, eight hundred eighty-nine thousand, eight hundred fifty-three".