3987958 has 16 divisors (see below), whose sum is σ = 6488496. Its totient is φ = 1827360.

The previous prime is 3987943. The next prime is 3988003. The reversal of 3987958 is 8597893.

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, 3768 + ... + 4708.

It is an arithmetic number, because the mean of its divisors is an integer number (405531).

Almost surely, 2^3987958 is an apocalyptic number.

3987958 is a deficient number, since it is larger than the sum of its proper divisors (2500538).

3987958 is a wasteful number, since it uses less digits than its factorization.

3987958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its digits is 544320, while the sum is 49.

The square root of 3987958 is about 1996.9872308054. The cubic root of 3987958 is about 158.5806493801.

The spelling of 3987958 in words is "three million, nine hundred eighty-seven thousand, nine hundred fifty-eight".