3893869664 has 24 divisors (see below), whose sum is σ = 7670376000. Its totient is φ = 1945837696.

The previous prime is 3893869613. The next prime is 3893869723. The reversal of 3893869664 is 4669683983.

It is a junction number, because it is equal to n+sod(n) for n = 3893869597 and 3893869606.

It is a congruent number.

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, 24962 + ... + 91710.

It is an arithmetic number, because the mean of its divisors is an integer number (319599000).

Almost surely, 2^3893869664 is an apocalyptic number.

It is an amenable number.

3893869664 is a deficient number, since it is larger than the sum of its proper divisors (3776506336).

3893869664 is a wasteful number, since it uses less digits than its factorization.

3893869664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68582 (or 68574 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 62.

The square root of 3893869664 is about 62400.8787117617. The cubic root of 3893869664 is about 1573.2357386237.

The spelling of 3893869664 in words is "three billion, eight hundred ninety-three million, eight hundred sixty-nine thousand, six hundred sixty-four".