3924328813 has 4 divisors (see below), whose sum is σ = 3924652608. Its totient is φ = 3924005020.

The previous prime is 3924328789. The next prime is 3924328819. The reversal of 3924328813 is 3188234293.

3924328813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3188234293 = 103 ⋅30953731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3924328813 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 3924328813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3924328819) 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, 142981 + ... + 168202.

It is an arithmetic number, because the mean of its divisors is an integer number (981163152).

Almost surely, 2^3924328813 is an apocalyptic number.

It is an amenable number.

3924328813 is a deficient number, since it is larger than the sum of its proper divisors (323795).

3924328813 is a wasteful number, since it uses less digits than its factorization.

3924328813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323794.

The product of its digits is 248832, while the sum is 43.

The square root of 3924328813 is about 62644.4635462704. The cubic root of 3924328813 is about 1577.3272139282.

The spelling of 3924328813 in words is "three billion, nine hundred twenty-four million, three hundred twenty-eight thousand, eight hundred thirteen".