6971969 has 4 divisors (see below), whose sum is σ = 6985044. Its totient is φ = 6958896.

The previous prime is 6971963. The next prime is 6971981. The reversal of 6971969 is 9691796.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3659569 + 3312400 = 1913^2 + 1820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6971969 is a prime.

It is a super-2 number, since 2×6971969² = 97216703473922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6971963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5702 + ... + 6815.

It is an arithmetic number, because the mean of its divisors is an integer number (1746261).

Almost surely, 2^6971969 is an apocalyptic number.

It is an amenable number.

6971969 is a deficient number, since it is larger than the sum of its proper divisors (13075).

6971969 is a wasteful number, since it uses less digits than its factorization.

6971969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074.

The product of its digits is 183708, while the sum is 47.

The square root of 6971969 is about 2640.4486361223. The cubic root of 6971969 is about 191.0374368108.

The spelling of 6971969 in words is "six million, nine hundred seventy-one thousand, nine hundred sixty-nine".