13389811 has 4 divisors (see below), whose sum is σ = 13447512. Its totient is φ = 13332112.

The previous prime is 13389787. The next prime is 13389823. The reversal of 13389811 is 11898331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11898331 = 109 ⋅109159.

It is a cyclic number.

It is not a de Polignac number, because 13389811 - 2²³ = 5001203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13389881) 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, 28501 + ... + 28966.

It is an arithmetic number, because the mean of its divisors is an integer number (3361878).

Almost surely, 2^13389811 is an apocalyptic number.

13389811 is a deficient number, since it is larger than the sum of its proper divisors (57701).

13389811 is an equidigital number, since it uses as much as digits as its factorization.

13389811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57700.

The product of its digits is 5184, while the sum is 34.

The square root of 13389811 is about 3659.2090675445. The cubic root of 13389811 is about 237.4605570694.

The spelling of 13389811 in words is "thirteen million, three hundred eighty-nine thousand, eight hundred eleven".