10904809 has 2 divisors, whose sum is σ = 10904810. Its totient is φ = 10904808.

The previous prime is 10904801. The next prime is 10904821. The reversal of 10904809 is 90840901.

10904809 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6051600 + 4853209 = 2460^2 + 2203^2 .

It is an emirp because it is prime and its reverse (90840901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10904809 - 2³ = 10904801 is a prime.

It is not a weakly prime, because it can be changed into another prime (10904801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5452404 + 5452405.

It is an arithmetic number, because the mean of its divisors is an integer number (5452405).

Almost surely, 2^10904809 is an apocalyptic number.

It is an amenable number.

10904809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10904809 is an equidigital number, since it uses as much as digits as its factorization.

10904809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 10904809 is about 3302.2430255812. The cubic root of 10904809 is about 221.7546256789.

The spelling of 10904809 in words is "ten million, nine hundred four thousand, eight hundred nine".