3882784666 has 32 divisors (see below), whose sum is σ = 6272957520. Its totient is φ = 1795977216.

The previous prime is 3882784657. The next prime is 3882784687. The reversal of 3882784666 is 6664872883.

It can be written as a sum of positive squares in 8 ways, for example, as 3312578025 + 570206641 = 57555^2 + 23879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3882784666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519790 + ... + 527206.

Almost surely, 2^3882784666 is an apocalyptic number.

3882784666 is a deficient number, since it is larger than the sum of its proper divisors (2390172854).

3882784666 is a wasteful number, since it uses less digits than its factorization.

3882784666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698.

The product of its digits is 18579456, while the sum is 58.

The square root of 3882784666 is about 62311.9945596351. The cubic root of 3882784666 is about 1571.7414333535.

The spelling of 3882784666 in words is "three billion, eight hundred eighty-two million, seven hundred eighty-four thousand, six hundred sixty-six".