6966649 has 2 divisors, whose sum is σ = 6966650. Its totient is φ = 6966648.

The previous prime is 6966647. The next prime is 6966689. The reversal of 6966649 is 9466696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6656400 + 310249 = 2580^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 6966649 - 2¹ = 6966647 is a prime.

Together with 6966647, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6966599 and 6966608.

It is not a weakly prime, because it can be changed into another prime (6966643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3483324 + 3483325.

It is an arithmetic number, because the mean of its divisors is an integer number (3483325).

Almost surely, 2^6966649 is an apocalyptic number.

It is an amenable number.

6966649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6966649 is an equidigital number, since it uses as much as digits as its factorization.

6966649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 46.

The square root of 6966649 is about 2639.4410393112. The cubic root of 6966649 is about 190.9888337176.

The spelling of 6966649 in words is "six million, nine hundred sixty-six thousand, six hundred forty-nine".