5319991 has 4 divisors (see below), whose sum is σ = 5328792. Its totient is φ = 5311192.

The previous prime is 5319989. The next prime is 5320027. The reversal of 5319991 is 1999135.

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

It is a cyclic number.

It is not a de Polignac number, because 5319991 - 2¹ = 5319989 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 5319991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5319911) 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, 3421 + ... + 4726.

It is an arithmetic number, because the mean of its divisors is an integer number (1332198).

Almost surely, 2^5319991 is an apocalyptic number.

5319991 is a deficient number, since it is larger than the sum of its proper divisors (8801).

5319991 is an equidigital number, since it uses as much as digits as its factorization.

5319991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8800.

The product of its digits is 10935, while the sum is 37.

The square root of 5319991 is about 2306.5105679359. The cubic root of 5319991 is about 174.5702762617.

The spelling of 5319991 in words is "five million, three hundred nineteen thousand, nine hundred ninety-one".