5591837 has 2 divisors, whose sum is σ = 5591838. Its totient is φ = 5591836.

The previous prime is 5591819. The next prime is 5591863. The reversal of 5591837 is 7381955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5480281 + 111556 = 2341^2 + 334^2 .

It is a cyclic number.

It is not a de Polignac number, because 5591837 - 2¹⁰ = 5590813 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5591837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5591897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2795918 + 2795919.

It is an arithmetic number, because the mean of its divisors is an integer number (2795919).

Almost surely, 2^5591837 is an apocalyptic number.

It is an amenable number.

5591837 is a deficient number, since it is larger than the sum of its proper divisors (1).

5591837 is an equidigital number, since it uses as much as digits as its factorization.

5591837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 38.

The square root of 5591837 is about 2364.7065357037. The cubic root of 5591837 is about 177.4944731467.

It can be divided in two parts, 55918 and 37, that added together give a palindrome (55955).

The spelling of 5591837 in words is "five million, five hundred ninety-one thousand, eight hundred thirty-seven".