11905473 has 4 divisors (see below), whose sum is σ = 15873968. Its totient is φ = 7936980.

The previous prime is 11905427. The next prime is 11905477. The reversal of 11905473 is 37450911.

11905473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37450911 = 3 ⋅12483637.

It is not a de Polignac number, because 11905473 - 2⁶ = 11905409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11905473.

It is not an unprimeable number, because it can be changed into a prime (11905477) 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, 1984243 + ... + 1984248.

It is an arithmetic number, because the mean of its divisors is an integer number (3968492).

Almost surely, 2^11905473 is an apocalyptic number.

It is an amenable number.

11905473 is a deficient number, since it is larger than the sum of its proper divisors (3968495).

11905473 is an equidigital number, since it uses as much as digits as its factorization.

11905473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968494.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 11905473 is about 3450.4308426630. The cubic root of 11905473 is about 228.3401164211.

The spelling of 11905473 in words is "eleven million, nine hundred five thousand, four hundred seventy-three".