3987041 has 4 divisors (see below), whose sum is σ = 4041732. Its totient is φ = 3932352.

The previous prime is 3987037. The next prime is 3987077. The reversal of 3987041 is 1407893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2371600 + 1615441 = 1540^2 + 1271^2 .

It is a cyclic number.

It is not a de Polignac number, because 3987041 - 2² = 3987037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3986989 and 3987007.

It is not an unprimeable number, because it can be changed into a prime (3987001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27236 + ... + 27381.

It is an arithmetic number, because the mean of its divisors is an integer number (1010433).

Almost surely, 2^3987041 is an apocalyptic number.

It is an amenable number.

3987041 is a deficient number, since it is larger than the sum of its proper divisors (54691).

3987041 is an equidigital number, since it uses as much as digits as its factorization.

3987041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54690.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 3987041 is about 1996.7576217458. The cubic root of 3987041 is about 158.5684936517.

The spelling of 3987041 in words is "three million, nine hundred eighty-seven thousand, forty-one".