3641871 has 8 divisors (see below), whose sum is σ = 4891824. Its totient is φ = 2409920.

The previous prime is 3641867. The next prime is 3641881. The reversal of 3641871 is 1781463.

It is a happy number.

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 3641871 - 2² = 3641867 is a prime.

3641871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641801) 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, 4020 + ... + 4841.

It is an arithmetic number, because the mean of its divisors is an integer number (611478).

Almost surely, 2^3641871 is an apocalyptic number.

3641871 is a deficient number, since it is larger than the sum of its proper divisors (1249953).

3641871 is a wasteful number, since it uses less digits than its factorization.

3641871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9001.

The product of its digits is 4032, while the sum is 30.

The square root of 3641871 is about 1908.3686750730. The cubic root of 3641871 is about 153.8537854355.

The spelling of 3641871 in words is "three million, six hundred forty-one thousand, eight hundred seventy-one".