3987542 has 16 divisors (see below), whose sum is σ = 6508320. Its totient is φ = 1821312.

The previous prime is 3987523. The next prime is 3987551. The reversal of 3987542 is 2457893.

It is a junction number, because it is equal to n+sod(n) for n = 3987496 and 3987505.

It is a congruent number.

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, 1934 + ... + 3422.

It is an arithmetic number, because the mean of its divisors is an integer number (406770).

Almost surely, 2^3987542 is an apocalyptic number.

3987542 is a deficient number, since it is larger than the sum of its proper divisors (2520778).

3987542 is a wasteful number, since it uses less digits than its factorization.

3987542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607.

The product of its digits is 60480, while the sum is 38.

The square root of 3987542 is about 1996.8830711887. The cubic root of 3987542 is about 158.5751351258.

The spelling of 3987542 in words is "three million, nine hundred eighty-seven thousand, five hundred forty-two".