4094905 has 8 divisors (see below), whose sum is σ = 4926600. Its totient is φ = 3267456.

The previous prime is 4094903. The next prime is 4094911. The reversal of 4094905 is 5094904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2143296 + 1951609 = 1464^2 + 1397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4094905 - 2¹ = 4094903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4094903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741 + ... + 3349.

It is an arithmetic number, because the mean of its divisors is an integer number (615825).

Almost surely, 2^4094905 is an apocalyptic number.

It is an amenable number.

4094905 is a deficient number, since it is larger than the sum of its proper divisors (831695).

4094905 is a wasteful number, since it uses less digits than its factorization.

4094905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 4094905 is about 2023.5871614536. The cubic root of 4094905 is about 159.9857409168.

Subtracting 4094905 from its reverse (5094904), we obtain a palindrome (999999).

The spelling of 4094905 in words is "four million, ninety-four thousand, nine hundred five".