3949237863 has 20 divisors (see below), whose sum is σ = 6036681288. Its totient is φ = 2571594480.

The previous prime is 3949237849. The next prime is 3949237867. The reversal of 3949237863 is 3687329493.

It is not a de Polignac number, because 3949237863 - 2¹⁰ = 3949236839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949237867) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 563448 + ... + 570413.

Almost surely, 2^3949237863 is an apocalyptic number.

3949237863 is a deficient number, since it is larger than the sum of its proper divisors (2087443425).

3949237863 is a wasteful number, since it uses less digits than its factorization.

3949237863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133916 (or 1133907 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The square root of 3949237863 is about 62842.9619209661. The cubic root of 3949237863 is about 1580.6574552506.

The spelling of 3949237863 in words is "three billion, nine hundred forty-nine million, two hundred thirty-seven thousand, eight hundred sixty-three".