3871329 has 16 divisors (see below), whose sum is σ = 6435840. Its totient is φ = 2010960.

The previous prime is 3871321. The next prime is 3871331. The reversal of 3871329 is 9231783.

It is not a de Polignac number, because 3871329 - 2³ = 3871321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 3871329.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871321) 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, 8149 + ... + 8610.

It is an arithmetic number, because the mean of its divisors is an integer number (402240).

Almost surely, 2^3871329 is an apocalyptic number.

It is an amenable number.

3871329 is a deficient number, since it is larger than the sum of its proper divisors (2564511).

3871329 is a wasteful number, since it uses less digits than its factorization.

3871329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16780.

The product of its digits is 9072, while the sum is 33.

The square root of 3871329 is about 1967.5693126292. The cubic root of 3871329 is about 157.0194169124.

The spelling of 3871329 in words is "three million, eight hundred seventy-one thousand, three hundred twenty-nine".