5721271 has 2 divisors, whose sum is σ = 5721272. Its totient is φ = 5721270.

The previous prime is 5721269. The next prime is 5721281. The reversal of 5721271 is 1721275.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5721271 - 2¹ = 5721269 is a prime.

Together with 5721269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5721211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860635 + 2860636.

It is an arithmetic number, because the mean of its divisors is an integer number (2860636).

Almost surely, 2^5721271 is an apocalyptic number.

5721271 is a deficient number, since it is larger than the sum of its proper divisors (1).

5721271 is an equidigital number, since it uses as much as digits as its factorization.

5721271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 980, while the sum is 25.

The square root of 5721271 is about 2391.9178497599. The cubic root of 5721271 is about 178.8535260240.

The spelling of 5721271 in words is "five million, seven hundred twenty-one thousand, two hundred seventy-one".