6500971 has 2 divisors, whose sum is σ = 6500972. Its totient is φ = 6500970.

The previous prime is 6500969. The next prime is 6500981. The reversal of 6500971 is 1790056.

It is a happy number.

6500971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6500971 - 2¹ = 6500969 is a prime.

Together with 6500969, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (6500941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3250485 + 3250486.

It is an arithmetic number, because the mean of its divisors is an integer number (3250486).

Almost surely, 2^6500971 is an apocalyptic number.

6500971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6500971 is an equidigital number, since it uses as much as digits as its factorization.

6500971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 6500971 is about 2549.7001784524. The cubic root of 6500971 is about 186.6348503739.

Subtracting from 6500971 its reverse (1790056), we obtain a triangular number (4710915 = T₃₀₆₉).

The spelling of 6500971 in words is "six million, five hundred thousand, nine hundred seventy-one".