3987069 has 8 divisors (see below), whose sum is σ = 5328960. Its totient is φ = 2651616.

The previous prime is 3987037. The next prime is 3987077. The reversal of 3987069 is 9607893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3987069 - 2⁵ = 3987037 is a prime.

It is a super-2 number, since 2×3987069² = 31793438421522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3987069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97 + ... + 2825.

It is an arithmetic number, because the mean of its divisors is an integer number (666120).

Almost surely, 2^3987069 is an apocalyptic number.

It is an amenable number.

3987069 is a deficient number, since it is larger than the sum of its proper divisors (1341891).

3987069 is a wasteful number, since it uses less digits than its factorization.

3987069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3987069 is about 1996.7646331003. The cubic root of 3987069 is about 158.5688648466.

The spelling of 3987069 in words is "three million, nine hundred eighty-seven thousand, sixty-nine".