3894870765 has 16 divisors (see below), whose sum is σ = 6598369728. Its totient is φ = 1955072256.

The previous prime is 3894870751. The next prime is 3894870769. The reversal of 3894870765 is 5670784983.

3894870765 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3894870765 - 2⁸ = 3894870509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894870769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7636747 + ... + 7637256.

It is an arithmetic number, because the mean of its divisors is an integer number (412398108).

Almost surely, 2^3894870765 is an apocalyptic number.

It is an amenable number.

3894870765 is a deficient number, since it is larger than the sum of its proper divisors (2703498963).

3894870765 is a wasteful number, since it uses less digits than its factorization.

3894870765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274028.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The square root of 3894870765 is about 62408.8997259205. The cubic root of 3894870765 is about 1573.3705516378.

The spelling of 3894870765 in words is "three billion, eight hundred ninety-four million, eight hundred seventy thousand, seven hundred sixty-five".