3871249 has 8 divisors (see below), whose sum is σ = 4082688. Its totient is φ = 3665280.

The previous prime is 3871211. The next prime is 3871271. The reversal of 3871249 is 9421783.

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 3871249 - 2¹⁹ = 3346961 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 (3872249) 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, 129 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (510336).

Almost surely, 2^3871249 is an apocalyptic number.

It is an amenable number.

3871249 is a deficient number, since it is larger than the sum of its proper divisors (211439).

3871249 is a wasteful number, since it uses less digits than its factorization.

3871249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735.

The product of its digits is 12096, while the sum is 34.

The square root of 3871249 is about 1967.5489828718. The cubic root of 3871249 is about 157.0183353165.

The spelling of 3871249 in words is "three million, eight hundred seventy-one thousand, two hundred forty-nine".