3987339 has 8 divisors (see below), whose sum is σ = 5429760. Its totient is φ = 2601576.

The previous prime is 3987323. The next prime is 3987353. The reversal of 3987339 is 9337893.

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 3987339 - 2⁴ = 3987323 is a prime.

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.

3987339 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3987339.

It is not an unprimeable number, because it can be changed into a prime (3987839) 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, 13999 + ... + 14280.

It is an arithmetic number, because the mean of its divisors is an integer number (678720).

Almost surely, 2^3987339 is an apocalyptic number.

3987339 is a deficient number, since it is larger than the sum of its proper divisors (1442421).

3987339 is a wasteful number, since it uses less digits than its factorization.

3987339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28329.

The product of its digits is 122472, while the sum is 42.

The square root of 3987339 is about 1996.8322413262. The cubic root of 3987339 is about 158.5724441365.

It can be divided in two parts, 39 and 87339, that added together give a palindrome (87378).

The spelling of 3987339 in words is "three million, nine hundred eighty-seven thousand, three hundred thirty-nine".