3208707668 has 36 divisors (see below), whose sum is σ = 5836145952. Its totient is φ = 1543547040.

The previous prime is 3208707661. The next prime is 3208707703. The reversal of 3208707668 is 8667078023.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3208707661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1044671 + ... + 1047737.

Almost surely, 2^3208707668 is an apocalyptic number.

It is an amenable number.

3208707668 is a deficient number, since it is larger than the sum of its proper divisors (2627438284).

3208707668 is a wasteful number, since it uses less digits than its factorization.

3208707668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440 (or 3409 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 3208707668 is about 56645.4558459900. The cubic root of 3208707668 is about 1474.9480273557.

The spelling of 3208707668 in words is "three billion, two hundred eight million, seven hundred seven thousand, six hundred sixty-eight".