3987935 has 16 divisors (see below), whose sum is σ = 5659200. Its totient is φ = 2639616.

The previous prime is 3987931. The next prime is 3987937. The reversal of 3987935 is 5397893.

It is not a de Polignac number, because 3987935 - 2² = 3987931 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950 + ... + 2979.

It is an arithmetic number, because the mean of its divisors is an integer number (353700).

Almost surely, 2^3987935 is an apocalyptic number.

3987935 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3987935 is a deficient number, since it is larger than the sum of its proper divisors (1671265).

3987935 is a wasteful number, since it uses less digits than its factorization.

3987935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970.

The product of its digits is 204120, while the sum is 44.

The square root of 3987935 is about 1996.9814721224. The cubic root of 3987935 is about 158.5803445155.

The spelling of 3987935 in words is "three million, nine hundred eighty-seven thousand, nine hundred thirty-five".