66984364 has 12 divisors (see below), whose sum is σ = 117970384. Its totient is φ = 33278544.

The previous prime is 66984347. The next prime is 66984371. The reversal of 66984364 is 46348966.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52704 + ... + 53959.

Almost surely, 2^66984364 is an apocalyptic number.

It is an amenable number.

66984364 is a deficient number, since it is larger than the sum of its proper divisors (50986020).

66984364 is a wasteful number, since it uses less digits than its factorization.

66984364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106824 (or 106822 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The square root of 66984364 is about 8184.3975954251. The cubic root of 66984364 is about 406.1232123794.

The spelling of 66984364 in words is "sixty-six million, nine hundred eighty-four thousand, three hundred sixty-four".