5727991 has 2 divisors, whose sum is σ = 5727992. Its totient is φ = 5727990.

The previous prime is 5727979. The next prime is 5728001. The reversal of 5727991 is 1997275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5727991 - 2¹¹ = 5725943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5727971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2863995 + 2863996.

It is an arithmetic number, because the mean of its divisors is an integer number (2863996).

Almost surely, 2^5727991 is an apocalyptic number.

5727991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5727991 is an equidigital number, since it uses as much as digits as its factorization.

5727991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 40.

The square root of 5727991 is about 2393.3221680334. The cubic root of 5727991 is about 178.9235236075.

The spelling of 5727991 in words is "five million, seven hundred twenty-seven thousand, nine hundred ninety-one".