3916443625 has 16 divisors (see below), whose sum is σ = 4890137616. Its totient is φ = 3131606400.

The previous prime is 3916443623. The next prime is 3916443631. The reversal of 3916443625 is 5263446193.

It can be written as a sum of positive squares in 8 ways, for example, as 1591371664 + 2325071961 = 39892^2 + 48219^2 .

It is not a de Polignac number, because 3916443625 - 2¹ = 3916443623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3916443623) 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, 292579 + ... + 305671.

It is an arithmetic number, because the mean of its divisors is an integer number (305633601).

Almost surely, 2^3916443625 is an apocalyptic number.

It is an amenable number.

3916443625 is a deficient number, since it is larger than the sum of its proper divisors (973693991).

3916443625 is a wasteful number, since it uses less digits than its factorization.

3916443625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15501 (or 15491 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The square root of 3916443625 is about 62581.4958673888. The cubic root of 3916443625 is about 1576.2700598009.

The spelling of 3916443625 in words is "three billion, nine hundred sixteen million, four hundred forty-three thousand, six hundred twenty-five".