83963666 has 8 divisors (see below), whose sum is σ = 126030384. Its totient is φ = 41953540.

The previous prime is 83963657. The next prime is 83963689. The reversal of 83963666 is 66636938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 83963666.

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, 10220 + ... + 16503.

It is an arithmetic number, because the mean of its divisors is an integer number (15753798).

Almost surely, 2^83963666 is an apocalyptic number.

83963666 is a deficient number, since it is larger than the sum of its proper divisors (42066718).

83963666 is a wasteful number, since it uses less digits than its factorization.

83963666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28296.

The product of its digits is 839808, while the sum is 47.

The square root of 83963666 is about 9163.1689933123. The cubic root of 83963666 is about 437.8887598630. Note that the first 3 decimals are identical.

The spelling of 83963666 in words is "eighty-three million, nine hundred sixty-three thousand, six hundred sixty-six".