13004811 has 6 divisors (see below), whose sum is σ = 18784740. Its totient is φ = 8669868.

The previous prime is 13004809. The next prime is 13004819. The reversal of 13004811 is 11840031.

It is not a de Polignac number, because 13004811 - 2¹ = 13004809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13004819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 722481 + ... + 722498.

It is an arithmetic number, because the mean of its divisors is an integer number (3130790).

Almost surely, 2^13004811 is an apocalyptic number.

13004811 is a deficient number, since it is larger than the sum of its proper divisors (5779929).

13004811 is a wasteful number, since it uses less digits than its factorization.

13004811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444985 (or 1444982 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 13004811 is about 3606.2183794108. The cubic root of 13004811 is about 235.1624710182.

Adding to 13004811 its reverse (11840031), we get a palindrome (24844842).

The spelling of 13004811 in words is "thirteen million, four thousand, eight hundred eleven".