3987933 has 16 divisors (see below), whose sum is σ = 5546496. Its totient is φ = 2545920.

The previous prime is 3987931. The next prime is 3987937. The reversal of 3987933 is 3397893.

It is a happy number.

It is not a de Polignac number, because 3987933 - 2¹ = 3987931 is a prime.

It is a super-2 number, since 2×3987933² = 31807219224978, which contains 22 as substring.

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, 12585 + ... + 12897.

It is an arithmetic number, because the mean of its divisors is an integer number (346656).

Almost surely, 2^3987933 is an apocalyptic number.

It is an amenable number.

3987933 is a deficient number, since it is larger than the sum of its proper divisors (1558563).

3987933 is a wasteful number, since it uses less digits than its factorization.

3987933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 122472, while the sum is 42.

The square root of 3987933 is about 1996.9809713665. The cubic root of 3987933 is about 158.5803180055.

The spelling of 3987933 in words is "three million, nine hundred eighty-seven thousand, nine hundred thirty-three".