3987279 has 16 divisors (see below), whose sum is σ = 6009600. Its totient is φ = 2612088.

The previous prime is 3987271. The next prime is 3987287. The reversal of 3987279 is 9727893.

It is an interprime number because it is at equal distance from previous prime (3987271) and next prime (3987287).

It is not a de Polignac number, because 3987279 - 2³ = 3987271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (375600).

Almost surely, 2^3987279 is an apocalyptic number.

3987279 is a deficient number, since it is larger than the sum of its proper divisors (2022321).

3987279 is a wasteful number, since it uses less digits than its factorization.

3987279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2565 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 3987279 is about 1996.8172174738. The cubic root of 3987279 is about 158.5716487527.

The spelling of 3987279 in words is "three million, nine hundred eighty-seven thousand, two hundred seventy-nine".