3987067 has 4 divisors (see below), whose sum is σ = 4556656. Its totient is φ = 3417480.

The previous prime is 3987037. The next prime is 3987077. The reversal of 3987067 is 7607893.

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

It is a cyclic number.

It is not a de Polignac number, because 3987067 - 2¹⁹ = 3462779 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3987037) 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, 284784 + ... + 284797.

It is an arithmetic number, because the mean of its divisors is an integer number (1139164).

Almost surely, 2^3987067 is an apocalyptic number.

3987067 is a deficient number, since it is larger than the sum of its proper divisors (569589).

3987067 is an equidigital number, since it uses as much as digits as its factorization.

3987067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569588.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 3987067 is about 1996.7641322900. The cubic root of 3987067 is about 158.5688383327.

The spelling of 3987067 in words is "three million, nine hundred eighty-seven thousand, sixty-seven".