6678964 has 6 divisors (see below), whose sum is σ = 11688194. Its totient is φ = 3339480.

The previous prime is 6678929. The next prime is 6678967. The reversal of 6678964 is 4698766.

It can be written as a sum of positive squares in only one way, i.e., 6200100 + 478864 = 2490^2 + 692^2 .

It is a super-2 number, since 2×6678964² = 89217120226592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678967) 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, 834867 + ... + 834874.

Almost surely, 2^6678964 is an apocalyptic number.

It is an amenable number.

6678964 is a deficient number, since it is larger than the sum of its proper divisors (5009230).

6678964 is a wasteful number, since it uses less digits than its factorization.

6678964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669745 (or 1669743 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 6678964 is about 2584.3691686754. The cubic root of 6678964 is about 188.3228570325.

The spelling of 6678964 in words is "six million, six hundred seventy-eight thousand, nine hundred sixty-four".