6650971 has 2 divisors, whose sum is σ = 6650972. Its totient is φ = 6650970.

The previous prime is 6650929. The next prime is 6650993. The reversal of 6650971 is 1790566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6650971 - 2⁷ = 6650843 is a prime.

It is not a weakly prime, because it can be changed into another prime (6650911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325485 + 3325486.

It is an arithmetic number, because the mean of its divisors is an integer number (3325486).

Almost surely, 2^6650971 is an apocalyptic number.

6650971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650971 is an equidigital number, since it uses as much as digits as its factorization.

6650971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 6650971 is about 2578.9476535983. The cubic root of 6650971 is about 188.0593878321.

The spelling of 6650971 in words is "six million, six hundred fifty thousand, nine hundred seventy-one".