3987736 has 8 divisors (see below), whose sum is σ = 7477020. Its totient is φ = 1993864.

The previous prime is 3987733. The next prime is 3987757. The reversal of 3987736 is 6377893.

3987736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3987692 and 3987701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249226 + ... + 249241.

Almost surely, 2^3987736 is an apocalyptic number.

It is an amenable number.

3987736 is a deficient number, since it is larger than the sum of its proper divisors (3489284).

3987736 is a wasteful number, since it uses less digits than its factorization.

3987736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498473 (or 498469 counting only the distinct ones).

The product of its digits is 190512, while the sum is 43.

The square root of 3987736 is about 1996.9316463014. The cubic root of 3987736 is about 158.5777067248.

The spelling of 3987736 in words is "three million, nine hundred eighty-seven thousand, seven hundred thirty-six".