6340871 has 2 divisors, whose sum is σ = 6340872. Its totient is φ = 6340870.

The previous prime is 6340849. The next prime is 6340877. The reversal of 6340871 is 1780436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6340871 - 2¹⁰ = 6339847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6340877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170435 + 3170436.

It is an arithmetic number, because the mean of its divisors is an integer number (3170436).

Almost surely, 2^6340871 is an apocalyptic number.

6340871 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340871 is an equidigital number, since it uses as much as digits as its factorization.

6340871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 6340871 is about 2518.1086156082. The cubic root of 6340871 is about 185.0900073342.

The spelling of 6340871 in words is "six million, three hundred forty thousand, eight hundred seventy-one".