3987906770 has 32 divisors (see below), whose sum is σ = 7589998080. Its totient is φ = 1504414080.

The previous prime is 3987906739. The next prime is 3987906787. The reversal of 3987906770 is 776097893.

3987906770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4691 + ... + 89430.

It is an arithmetic number, because the mean of its divisors is an integer number (237187440).

Almost surely, 2^3987906770 is an apocalyptic number.

3987906770 is a deficient number, since it is larger than the sum of its proper divisors (3602091310).

3987906770 is a wasteful number, since it uses less digits than its factorization.

3987906770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94370.

The product of its (nonzero) digits is 4000752, while the sum is 56.

The square root of 3987906770 is about 63149.8754551424. The cubic root of 3987906770 is about 1585.7997032572.

The spelling of 3987906770 in words is "three billion, nine hundred eighty-seven million, nine hundred six thousand, seven hundred seventy".