3994884836 has 6 divisors (see below), whose sum is σ = 6991048470. Its totient is φ = 1997442416.

The previous prime is 3994884827. The next prime is 3994884853. The reversal of 3994884836 is 6384884993.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3647435236 + 347449600 = 60394^2 + 18640^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499360601 + ... + 499360608.

It is an arithmetic number, because the mean of its divisors is an integer number (1165174745).

Almost surely, 2^3994884836 is an apocalyptic number.

It is an amenable number.

3994884836 is a deficient number, since it is larger than the sum of its proper divisors (2996163634).

3994884836 is a wasteful number, since it uses less digits than its factorization.

3994884836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998721213 (or 998721211 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 62.

The square root of 3994884836 is about 63205.1013447491. The cubic root of 3994884836 is about 1586.7241119383.

The spelling of 3994884836 in words is "three billion, nine hundred ninety-four million, eight hundred eighty-four thousand, eight hundred thirty-six".