3641839 has 4 divisors (see below), whose sum is σ = 3650400. Its totient is φ = 3633280.

The previous prime is 3641831. The next prime is 3641851. The reversal of 3641839 is 9381463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3641839 - 2³ = 3641831 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 (3641831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3607 + ... + 4504.

It is an arithmetic number, because the mean of its divisors is an integer number (912600).

Almost surely, 2^3641839 is an apocalyptic number.

3641839 is a deficient number, since it is larger than the sum of its proper divisors (8561).

3641839 is an equidigital number, since it uses as much as digits as its factorization.

3641839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560.

The product of its digits is 15552, while the sum is 34.

The square root of 3641839 is about 1908.3602909304. The cubic root of 3641839 is about 153.8533348122.

The spelling of 3641839 in words is "three million, six hundred forty-one thousand, eight hundred thirty-nine".