3847640408 has 32 divisors (see below), whose sum is σ = 7433112960. Its totient is φ = 1866021120.

The previous prime is 3847640389. The next prime is 3847640437. The reversal of 3847640408 is 8040467483.

3847640408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22841 + ... + 90647.

It is an arithmetic number, because the mean of its divisors is an integer number (232284780).

Almost surely, 2^3847640408 is an apocalyptic number.

It is an amenable number.

3847640408 is a deficient number, since it is larger than the sum of its proper divisors (3585472552).

3847640408 is a wasteful number, since it uses less digits than its factorization.

3847640408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68027 (or 68023 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The square root of 3847640408 is about 62029.3511815173. The cubic root of 3847640408 is about 1566.9849512576.

The spelling of 3847640408 in words is "three billion, eight hundred forty-seven million, six hundred forty thousand, four hundred eight".