3987589977 has 12 divisors (see below), whose sum is σ = 6582688320. Its totient is φ = 2278622808.

The previous prime is 3987589973. The next prime is 3987589979. The reversal of 3987589977 is 7799857893.

3987589977 is a `hidden beast` number, since 39 + 8 + 7 + 589 + 9 + 7 + 7 = 666.

It is not a de Polignac number, because 3987589977 - 2² = 3987589973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3987589973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31647477 + ... + 31647602.

It is an arithmetic number, because the mean of its divisors is an integer number (548557360).

Almost surely, 2^3987589977 is an apocalyptic number.

It is an amenable number.

3987589977 is a deficient number, since it is larger than the sum of its proper divisors (2595098343).

3987589977 is a wasteful number, since it uses less digits than its factorization.

3987589977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63295092 (or 63295089 counting only the distinct ones).

The product of its digits is 240045120, while the sum is 72.

The square root of 3987589977 is about 63147.3671422649. The cubic root of 3987589977 is about 1585.7577110060.

The spelling of 3987589977 in words is "three billion, nine hundred eighty-seven million, five hundred eighty-nine thousand, nine hundred seventy-seven".