5390905 has 16 divisors (see below), whose sum is σ = 7018704. Its totient is φ = 3951360.

The previous prime is 5390893. The next prime is 5390923. The reversal of 5390905 is 5090935.

It can be written as a sum of positive squares in 8 ways, for example, as 480249 + 4910656 = 693^2 + 2216^2 .

It is not a de Polignac number, because 5390905 - 2⁵ = 5390873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12595 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (438669).

Almost surely, 2^5390905 is an apocalyptic number.

It is an amenable number.

5390905 is a deficient number, since it is larger than the sum of its proper divisors (1627799).

5390905 is a wasteful number, since it uses less digits than its factorization.

5390905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 6075, while the sum is 31.

The square root of 5390905 is about 2321.8322506159. The cubic root of 5390905 is about 175.3425128643.

The spelling of 5390905 in words is "five million, three hundred ninety thousand, nine hundred five".