5408905 has 4 divisors (see below), whose sum is σ = 6490692. Its totient is φ = 4327120.

The previous prime is 5408903. The next prime is 5408917. The reversal of 5408905 is 5098045.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2676496 + 2732409 = 1636^2 + 1653^2 .

It is not a de Polignac number, because 5408905 - 2¹ = 5408903 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5408903) 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, 540886 + ... + 540895.

It is an arithmetic number, because the mean of its divisors is an integer number (1622673).

Almost surely, 2^5408905 is an apocalyptic number.

It is an amenable number.

5408905 is a deficient number, since it is larger than the sum of its proper divisors (1081787).

5408905 is a wasteful number, since it uses less digits than its factorization.

5408905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081786.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 5408905 is about 2325.7052693753. The cubic root of 5408905 is about 175.5374497668.

The spelling of 5408905 in words is "five million, four hundred eight thousand, nine hundred five".