3994884837 has 12 divisors (see below), whose sum is σ = 5791843980. Its totient is φ = 2653354368.

The previous prime is 3994884827. The next prime is 3994884853. The reversal of 3994884837 is 7384884993.

It can be written as a sum of positive squares in 2 ways, for example, as 147039876 + 3847844961 = 12126^2 + 62031^2 .

It is not a de Polignac number, because 3994884837 - 2¹⁰ = 3994883813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994884827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 822628 + ... + 827469.

It is an arithmetic number, because the mean of its divisors is an integer number (482653665).

Almost surely, 2^3994884837 is an apocalyptic number.

It is an amenable number.

3994884837 is a deficient number, since it is larger than the sum of its proper divisors (1796959143).

3994884837 is a wasteful number, since it uses less digits than its factorization.

3994884837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650372 (or 1650369 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The square root of 3994884837 is about 63205.1013526598. The cubic root of 3994884837 is about 1586.7241120707.

The spelling of 3994884837 in words is "three billion, nine hundred ninety-four million, eight hundred eighty-four thousand, eight hundred thirty-seven".