12404811 has 4 divisors (see below), whose sum is σ = 16539752. Its totient is φ = 8269872.

The previous prime is 12404807. The next prime is 12404813. The reversal of 12404811 is 11840421.

It is a happy number.

12404811 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12404811 - 2² = 12404807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12404813) 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, 2067466 + ... + 2067471.

It is an arithmetic number, because the mean of its divisors is an integer number (4134938).

Almost surely, 2^12404811 is an apocalyptic number.

12404811 is a deficient number, since it is larger than the sum of its proper divisors (4134941).

12404811 is an equidigital number, since it uses as much as digits as its factorization.

12404811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134940.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 12404811 is about 3522.0464221813. The cubic root of 12404811 is about 231.4888356895.

The spelling of 12404811 in words is "twelve million, four hundred four thousand, eight hundred eleven".