3971934563 has 8 divisors (see below), whose sum is σ = 4014170160. Its totient is φ = 3929725440.

The previous prime is 3971934559. The next prime is 3971934623. The reversal of 3971934563 is 3654391793.

3971934563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3971934563 - 2² = 3971934559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3971934523) 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, 488828 + ... + 496886.

It is an arithmetic number, because the mean of its divisors is an integer number (501771270).

Almost surely, 2^3971934563 is an apocalyptic number.

3971934563 is a deficient number, since it is larger than the sum of its proper divisors (42235597).

3971934563 is an equidigital number, since it uses as much as digits as its factorization.

3971934563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13237.

The product of its digits is 1837080, while the sum is 50.

The square root of 3971934563 is about 63023.2858791098. The cubic root of 3971934563 is about 1583.6797429852.

The spelling of 3971934563 in words is "three billion, nine hundred seventy-one million, nine hundred thirty-four thousand, five hundred sixty-three".