13338889 has 2 divisors, whose sum is σ = 13338890. Its totient is φ = 13338888.

The previous prime is 13338883. The next prime is 13338911. The reversal of 13338889 is 98883331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 4338889 = 3000^2 + 2083^2 .

It is an emirp because it is prime and its reverse (98883331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13338889 - 2¹⁹ = 12814601 is a prime.

It is equal to p₈₆₉₈₆₆ and since 13338889 and 869866 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (13338883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6669444 + 6669445.

It is an arithmetic number, because the mean of its divisors is an integer number (6669445).

Almost surely, 2^13338889 is an apocalyptic number.

It is an amenable number.

13338889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13338889 is an equidigital number, since it uses as much as digits as its factorization.

13338889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 13338889 is about 3652.2443784610. The cubic root of 13338889 is about 237.1591505820.

The spelling of 13338889 in words is "thirteen million, three hundred thirty-eight thousand, eight hundred eighty-nine".