3997567963 has 2 divisors, whose sum is σ = 3997567964. Its totient is φ = 3997567962.

The previous prime is 3997567957. The next prime is 3997567999. The reversal of 3997567963 is 3697657993.

It is a weak prime.

It is an emirp because it is prime and its reverse (3697657993) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3997567963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3997567895 and 3997567904.

It is not a weakly prime, because it can be changed into another prime (3997567913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1998783981 + 1998783982.

It is an arithmetic number, because the mean of its divisors is an integer number (1998783982).

Almost surely, 2^3997567963 is an apocalyptic number.

3997567963 is a deficient number, since it is larger than the sum of its proper divisors (1).

3997567963 is an equidigital number, since it uses as much as digits as its factorization.

3997567963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57868020, while the sum is 64.

The square root of 3997567963 is about 63226.3233392548. The cubic root of 3997567963 is about 1587.0792685693.

The spelling of 3997567963 in words is "three billion, nine hundred ninety-seven million, five hundred sixty-seven thousand, nine hundred sixty-three".