5667971 has 2 divisors, whose sum is σ = 5667972. Its totient is φ = 5667970.

The previous prime is 5667941. The next prime is 5667973. The reversal of 5667971 is 1797665.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5667971 is a prime.

It is a Sophie Germain prime.

Together with 5667973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5667973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833985 + 2833986.

It is an arithmetic number, because the mean of its divisors is an integer number (2833986).

Almost surely, 2^5667971 is an apocalyptic number.

5667971 is a deficient number, since it is larger than the sum of its proper divisors (1).

5667971 is an equidigital number, since it uses as much as digits as its factorization.

5667971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 41.

The square root of 5667971 is about 2380.7500918828. The cubic root of 5667971 is about 178.2963858201.

The spelling of 5667971 in words is "five million, six hundred sixty-seven thousand, nine hundred seventy-one".