3963993897 has 8 divisors (see below), whose sum is σ = 5286060000. Its totient is φ = 2642295200.

The previous prime is 3963993881. The next prime is 3963993899. The reversal of 3963993897 is 7983993693.

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

It is a cyclic number.

It is not a de Polignac number, because 3963993897 - 2⁴ = 3963993881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3963993899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65604 + ... + 110597.

It is an arithmetic number, because the mean of its divisors is an integer number (660757500).

Almost surely, 2^3963993897 is an apocalyptic number.

It is an amenable number.

3963993897 is a deficient number, since it is larger than the sum of its proper divisors (1322066103).

3963993897 is a wasteful number, since it uses less digits than its factorization.

3963993897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183703.

The product of its digits is 59521392, while the sum is 66.

The square root of 3963993897 is about 62960.2564877241. The cubic root of 3963993897 is about 1582.6236781316.

The spelling of 3963993897 in words is "three billion, nine hundred sixty-three million, nine hundred ninety-three thousand, eight hundred ninety-seven".