6411971 has 2 divisors, whose sum is σ = 6411972. Its totient is φ = 6411970.

The previous prime is 6411961. The next prime is 6411973. The reversal of 6411971 is 1791146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6411971 - 2¹⁰ = 6410947 is a prime.

It is a super-2 number, since 2×6411971² = 82226744209682, which contains 22 as substring.

Together with 6411973, 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 (6411973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205985 + 3205986.

It is an arithmetic number, because the mean of its divisors is an integer number (3205986).

Almost surely, 2^6411971 is an apocalyptic number.

6411971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6411971 is an equidigital number, since it uses as much as digits as its factorization.

6411971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 29.

The square root of 6411971 is about 2532.1869994137. The cubic root of 6411971 is about 185.7792405362.

The spelling of 6411971 in words is "six million, four hundred eleven thousand, nine hundred seventy-one".