5318391 has 32 divisors (see below), whose sum is σ = 8128512. Its totient is φ = 3070080.

The previous prime is 5318363. The next prime is 5318431. The reversal of 5318391 is 1938135.

It is a happy number.

It is not a de Polignac number, because 5318391 - 2¹¹ = 5316343 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5318311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64036 + ... + 64118.

It is an arithmetic number, because the mean of its divisors is an integer number (254016).

Almost surely, 2^5318391 is an apocalyptic number.

5318391 is a deficient number, since it is larger than the sum of its proper divisors (2810121).

5318391 is a wasteful number, since it uses less digits than its factorization.

5318391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183.

The product of its digits is 3240, while the sum is 30.

The square root of 5318391 is about 2306.1636975722. The cubic root of 5318391 is about 174.5527736978.

The spelling of 5318391 in words is "five million, three hundred eighteen thousand, three hundred ninety-one".