5171993 has 2 divisors, whose sum is σ = 5171994. Its totient is φ = 5171992.

The previous prime is 5171989. The next prime is 5172001. The reversal of 5171993 is 3991715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5071504 + 100489 = 2252^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 5171993 - 2² = 5171989 is a prime.

It is not a weakly prime, because it can be changed into another prime (5171923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2585996 + 2585997.

It is an arithmetic number, because the mean of its divisors is an integer number (2585997).

Almost surely, 2^5171993 is an apocalyptic number.

It is an amenable number.

5171993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171993 is an equidigital number, since it uses as much as digits as its factorization.

5171993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8505, while the sum is 35.

The square root of 5171993 is about 2274.2016181509. The cubic root of 5171993 is about 172.9362256161.

The spelling of 5171993 in words is "five million, one hundred seventy-one thousand, nine hundred ninety-three".