6966686 has 4 divisors (see below), whose sum is σ = 10450032. Its totient is φ = 3483342.

The previous prime is 6966649. The next prime is 6966689. The reversal of 6966686 is 6866696.

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

It is a super-3 number, since 3×6966686³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 6966686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6966689) 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, 1741670 + ... + 1741673.

It is an arithmetic number, because the mean of its divisors is an integer number (2612508).

Almost surely, 2^6966686 is an apocalyptic number.

6966686 is a deficient number, since it is larger than the sum of its proper divisors (3483346).

6966686 is a wasteful number, since it uses less digits than its factorization.

6966686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483345.

The product of its digits is 559872, while the sum is 47.

The square root of 6966686 is about 2639.4480483616. The cubic root of 6966686 is about 190.9891718321.

The spelling of 6966686 in words is "six million, nine hundred sixty-six thousand, six hundred eighty-six".