3986783540 has 24 divisors (see below), whose sum is σ = 8427697152. Its totient is φ = 1584151200.

The previous prime is 3986783539. The next prime is 3986783557. The reversal of 3986783540 is 453876893.

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, 657044 + ... + 663083.

It is an arithmetic number, because the mean of its divisors is an integer number (351154048).

Almost surely, 2^3986783540 is an apocalyptic number.

It is an amenable number.

3986783540 is an abundant number, since it is smaller than the sum of its proper divisors (4440913612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3986783540 is a wasteful number, since it uses less digits than its factorization.

3986783540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320287 (or 1320285 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The square root of 3986783540 is about 63140.9814621217. The cubic root of 3986783540 is about 1585.6508043350.

The spelling of 3986783540 in words is "three billion, nine hundred eighty-six million, seven hundred eighty-three thousand, five hundred forty".