3963520538 has 8 divisors (see below), whose sum is σ = 6150290580. Its totient is φ = 1913423680.

The previous prime is 3963520537. The next prime is 3963520577. The reversal of 3963520538 is 8350253693.

It is a happy number.

3963520538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3462969409 + 500551129 = 58847^2 + 22373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3963520537) 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, 34168223 + ... + 34168338.

Almost surely, 2^3963520538 is an apocalyptic number.

3963520538 is a deficient number, since it is larger than the sum of its proper divisors (2186770042).

3963520538 is a wasteful number, since it uses less digits than its factorization.

3963520538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68336592.

The product of its (nonzero) digits is 583200, while the sum is 44.

The square root of 3963520538 is about 62956.4971865494. The cubic root of 3963520538 is about 1582.5606794656.

The spelling of 3963520538 in words is "three billion, nine hundred sixty-three million, five hundred twenty thousand, five hundred thirty-eight".