3871749 has 8 divisors (see below), whose sum is σ = 5899840. Its totient is φ = 2212416.

The previous prime is 3871691. The next prime is 3871759. The reversal of 3871749 is 9471783.

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

It is not a de Polignac number, because 3871749 - 2¹⁵ = 3838981 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 (3871759) 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, 92164 + ... + 92205.

It is an arithmetic number, because the mean of its divisors is an integer number (737480).

Almost surely, 2^3871749 is an apocalyptic number.

It is an amenable number.

3871749 is a deficient number, since it is larger than the sum of its proper divisors (2028091).

3871749 is a wasteful number, since it uses less digits than its factorization.

3871749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184379.

The product of its digits is 42336, while the sum is 39.

The square root of 3871749 is about 1967.6760404091. The cubic root of 3871749 is about 157.0250950460.

The spelling of 3871749 in words is "three million, eight hundred seventy-one thousand, seven hundred forty-nine".