6390841 has 4 divisors (see below), whose sum is σ = 6452992. Its totient is φ = 6328692.

The previous prime is 6390829. The next prime is 6390847. The reversal of 6390841 is 1480936.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6390841 - 2¹⁵ = 6358073 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 (6390847) 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, 30921 + ... + 31126.

It is an arithmetic number, because the mean of its divisors is an integer number (1613248).

Almost surely, 2^6390841 is an apocalyptic number.

It is an amenable number.

6390841 is a deficient number, since it is larger than the sum of its proper divisors (62151).

6390841 is a wasteful number, since it uses less digits than its factorization.

6390841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62150.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6390841 is about 2528.0112737090. The cubic root of 6390841 is about 185.5749437446.

The spelling of 6390841 in words is "six million, three hundred ninety thousand, eight hundred forty-one".