3283639816 has 16 divisors (see below), whose sum is σ = 6306991740. Its totient is φ = 1601775360.

The previous prime is 3283639813. The next prime is 3283639847. The reversal of 3283639816 is 6189363823.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3279852900 + 3786916 = 57270^2 + 1946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3283639816.

It is not an unprimeable number, because it can be changed into a prime (3283639813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005221 + ... + 5005876.

Almost surely, 2^3283639816 is an apocalyptic number.

It is an amenable number.

3283639816 is a deficient number, since it is larger than the sum of its proper divisors (3023351924).

3283639816 is a wasteful number, since it uses less digits than its factorization.

3283639816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011144 (or 10011140 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 3283639816 is about 57303.0524143348. The cubic root of 3283639816 is about 1486.3411594947.

The spelling of 3283639816 in words is "three billion, two hundred eighty-three million, six hundred thirty-nine thousand, eight hundred sixteen".