26889299 has 2 divisors, whose sum is σ = 26889300. Its totient is φ = 26889298.

The previous prime is 26889287. The next prime is 26889301. The reversal of 26889299 is 99298862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26889299 - 2¹² = 26885203 is a prime.

It is a super-2 number, since 2×26889299² = 1446068801422802, which contains 22 as substring.

Together with 26889301, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26889299.

It is not a weakly prime, because it can be changed into another prime (26889229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13444649 + 13444650.

It is an arithmetic number, because the mean of its divisors is an integer number (13444650).

Almost surely, 2^26889299 is an apocalyptic number.

26889299 is a deficient number, since it is larger than the sum of its proper divisors (1).

26889299 is an equidigital number, since it uses as much as digits as its factorization.

26889299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 53.

The square root of 26889299 is about 5185.4892729616. The cubic root of 26889299 is about 299.5894346730.

The spelling of 26889299 in words is "twenty-six million, eight hundred eighty-nine thousand, two hundred ninety-nine".