3987580 has 12 divisors (see below), whose sum is σ = 8373960. Its totient is φ = 1595024.

The previous prime is 3987559. The next prime is 3987589. The reversal of 3987580 is 857893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987589) 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, 99670 + ... + 99709.

It is an arithmetic number, because the mean of its divisors is an integer number (697830).

Almost surely, 2^3987580 is an apocalyptic number.

It is an amenable number.

3987580 is an abundant number, since it is smaller than the sum of its proper divisors (4386380).

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

3987580 is a wasteful number, since it uses less digits than its factorization.

3987580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199388 (or 199386 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 3987580 is about 1996.8925859945. The cubic root of 3987580 is about 158.5756388476.

The spelling of 3987580 in words is "three million, nine hundred eighty-seven thousand, five hundred eighty".