6971669 has 2 divisors, whose sum is σ = 6971670. Its totient is φ = 6971668.

The previous prime is 6971659. The next prime is 6971677. The reversal of 6971669 is 9661796.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6682225 + 289444 = 2585^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 6971669 - 2¹² = 6967573 is a prime.

It is a super-2 number, since 2×6971669² = 97208337291122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6971609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3485834 + 3485835.

It is an arithmetic number, because the mean of its divisors is an integer number (3485835).

Almost surely, 2^6971669 is an apocalyptic number.

It is an amenable number.

6971669 is a deficient number, since it is larger than the sum of its proper divisors (1).

6971669 is an equidigital number, since it uses as much as digits as its factorization.

6971669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 6971669 is about 2640.3918269833. The cubic root of 6971669 is about 191.0346966928.

The spelling of 6971669 in words is "six million, nine hundred seventy-one thousand, six hundred sixty-nine".