5311791 has 16 divisors (see below), whose sum is σ = 7943520. Its totient is φ = 3507840.

The previous prime is 5311783. The next prime is 5311793. The reversal of 5311791 is 1971135.

It is a happy number.

It is not a de Polignac number, because 5311791 - 2³ = 5311783 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181 + ... + 3921.

It is an arithmetic number, because the mean of its divisors is an integer number (496470).

Almost surely, 2^5311791 is an apocalyptic number.

5311791 is a deficient number, since it is larger than the sum of its proper divisors (2631729).

5311791 is a wasteful number, since it uses less digits than its factorization.

5311791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863 (or 1857 counting only the distinct ones).

The product of its digits is 945, while the sum is 27.

The square root of 5311791 is about 2304.7323054967. The cubic root of 5311791 is about 174.4805384929.

The spelling of 5311791 in words is "five million, three hundred eleven thousand, seven hundred ninety-one".