3987408 has 20 divisors (see below), whose sum is σ = 10300928. Its totient is φ = 1329120.

The previous prime is 3987407. The next prime is 3987409. The reversal of 3987408 is 8047893.

It is an interprime number because it is at equal distance from previous prime (3987407) and next prime (3987409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41488 + ... + 41583.

Almost surely, 2^3987408 is an apocalyptic number.

It is an amenable number.

3987408 is an abundant number, since it is smaller than the sum of its proper divisors (6313520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3987408 is a wasteful number, since it uses less digits than its factorization.

3987408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83082 (or 83076 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 3987408 is about 1996.8495186168. The cubic root of 3987408 is about 158.5733588180.

The spelling of 3987408 in words is "three million, nine hundred eighty-seven thousand, four hundred eight".