5243971 has 2 divisors, whose sum is σ = 5243972. Its totient is φ = 5243970.

The previous prime is 5243947. The next prime is 5243993. The reversal of 5243971 is 1793425.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5243971 is a prime.

It is not a weakly prime, because it can be changed into another prime (5243911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621985 + 2621986.

It is an arithmetic number, because the mean of its divisors is an integer number (2621986).

Almost surely, 2^5243971 is an apocalyptic number.

5243971 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243971 is an equidigital number, since it uses as much as digits as its factorization.

5243971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 5243971 is about 2289.9718338879. The cubic root of 5243971 is about 173.7347767143.

The spelling of 5243971 in words is "five million, two hundred forty-three thousand, nine hundred seventy-one".