5197993 has 4 divisors (see below), whose sum is σ = 5283268. Its totient is φ = 5112720.

The previous prime is 5197967. The next prime is 5198003. The reversal of 5197993 is 3997915.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1024144 + 4173849 = 1012^2 + 2043^2 .

It is a cyclic number.

It is not a de Polignac number, because 5197993 - 2⁹ = 5197481 is a prime.

It is a Duffinian number.

5197993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5197943) 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 3 ways as a sum of consecutive naturals, for example, 42546 + ... + 42667.

It is an arithmetic number, because the mean of its divisors is an integer number (1320817).

Almost surely, 2^5197993 is an apocalyptic number.

It is an amenable number.

5197993 is a deficient number, since it is larger than the sum of its proper divisors (85275).

5197993 is an equidigital number, since it uses as much as digits as its factorization.

5197993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85274.

The product of its digits is 76545, while the sum is 43.

The square root of 5197993 is about 2279.9107438670. The cubic root of 5197993 is about 173.2255292015.

The spelling of 5197993 in words is "five million, one hundred ninety-seven thousand, nine hundred ninety-three".