5891993 has 2 divisors, whose sum is σ = 5891994. Its totient is φ = 5891992.

The previous prime is 5891983. The next prime is 5891999. The reversal of 5891993 is 3991985.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3341584 + 2550409 = 1828^2 + 1597^2 .

It is a cyclic number.

It is not a de Polignac number, because 5891993 - 2¹⁴ = 5875609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5891999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2945996 + 2945997.

It is an arithmetic number, because the mean of its divisors is an integer number (2945997).

Almost surely, 2^5891993 is an apocalyptic number.

It is an amenable number.

5891993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5891993 is an equidigital number, since it uses as much as digits as its factorization.

5891993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 44.

The square root of 5891993 is about 2427.3427858463. The cubic root of 5891993 is about 180.6151075548.

The spelling of 5891993 in words is "five million, eight hundred ninety-one thousand, nine hundred ninety-three".