3987546 has 16 divisors (see below), whose sum is σ = 8039424. Its totient is φ = 1318464.

The previous prime is 3987523. The next prime is 3987551. The reversal of 3987546 is 6457893.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3987498 and 3987507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855 + ... + 3378.

It is an arithmetic number, because the mean of its divisors is an integer number (502464).

Almost surely, 2^3987546 is an apocalyptic number.

3987546 is an abundant number, since it is smaller than the sum of its proper divisors (4051878).

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

3987546 is a wasteful number, since it uses less digits than its factorization.

3987546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5365.

The product of its digits is 181440, while the sum is 42.

The square root of 3987546 is about 1996.8840727493. The cubic root of 3987546 is about 158.5751881493.

The spelling of 3987546 in words is "three million, nine hundred eighty-seven thousand, five hundred forty-six".