66879046 has 24 divisors (see below), whose sum is σ = 112391280. Its totient is φ = 29798496.

The previous prime is 66879019. The next prime is 66879047. The reversal of 66879046 is 64097866.

It is a junction number, because it is equal to n+sod(n) for n = 66878987 and 66879005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66879047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6391 + ... + 13213.

It is an arithmetic number, because the mean of its divisors is an integer number (4682970).

Almost surely, 2^66879046 is an apocalyptic number.

66879046 is a deficient number, since it is larger than the sum of its proper divisors (45512234).

66879046 is a wasteful number, since it uses less digits than its factorization.

66879046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6880 (or 6867 counting only the distinct ones).

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

The square root of 66879046 is about 8177.9609928148. The cubic root of 66879046 is about 405.9102546181.

The spelling of 66879046 in words is "sixty-six million, eight hundred seventy-nine thousand, forty-six".