3924816725 has 12 divisors (see below), whose sum is σ = 4888603776. Its totient is φ = 3125768880.

The previous prime is 3924816713. The next prime is 3924816803. The reversal of 3924816725 is 5276184293.

It is not a de Polignac number, because 3924816725 - 2¹⁸ = 3924554581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3924816725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346427 + ... + 357576.

It is an arithmetic number, because the mean of its divisors is an integer number (407383648).

Almost surely, 2^3924816725 is an apocalyptic number.

It is an amenable number.

3924816725 is a deficient number, since it is larger than the sum of its proper divisors (963787051).

3924816725 is a wasteful number, since it uses less digits than its factorization.

3924816725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704236 (or 704231 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 3924816725 is about 62648.3577198956. The cubic root of 3924816725 is about 1577.3925809434.

The spelling of 3924816725 in words is "three billion, nine hundred twenty-four million, eight hundred sixteen thousand, seven hundred twenty-five".