3987349 has 8 divisors (see below), whose sum is σ = 4240512. Its totient is φ = 3740880.

The previous prime is 3987323. The next prime is 3987353. The reversal of 3987349 is 9437893.

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

It is a cyclic number.

It is not a de Polignac number, because 3987349 - 2⁵ = 3987317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987149) 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, 417 + ... + 2854.

It is an arithmetic number, because the mean of its divisors is an integer number (530064).

Almost surely, 2^3987349 is an apocalyptic number.

It is an amenable number.

3987349 is a deficient number, since it is larger than the sum of its proper divisors (253163).

3987349 is a wasteful number, since it uses less digits than its factorization.

3987349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347.

The product of its digits is 163296, while the sum is 43.

The square root of 3987349 is about 1996.8347452907. The cubic root of 3987349 is about 158.5725766997.

The spelling of 3987349 in words is "three million, nine hundred eighty-seven thousand, three hundred forty-nine".