3990047108 has 12 divisors (see below), whose sum is σ = 6983264652. Its totient is φ = 1994828640.

The previous prime is 3990047081. The next prime is 3990047111. The reversal of 3990047108 is 8017400993.

It is a happy number.

3990047108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2082279424 + 1907767684 = 45632^2 + 43678^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566 + ... + 89402.

It is an arithmetic number, because the mean of its divisors is an integer number (581938721).

Almost surely, 2^3990047108 is an apocalyptic number.

It is an amenable number.

3990047108 is a deficient number, since it is larger than the sum of its proper divisors (2993217544).

3990047108 is a wasteful number, since it uses less digits than its factorization.

3990047108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97462 (or 97460 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 3990047108 is about 63166.8196761559. The cubic root of 3990047108 is about 1586.0833558533.

The spelling of 3990047108 in words is "three billion, nine hundred ninety million, forty-seven thousand, one hundred eight".