6324391 has 4 divisors (see below), whose sum is σ = 6696432. Its totient is φ = 5952352.

The previous prime is 6324377. The next prime is 6324401. The reversal of 6324391 is 1934236.

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 6324391 - 2⁹ = 6323879 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 (6324371) 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, 185995 + ... + 186028.

It is an arithmetic number, because the mean of its divisors is an integer number (1674108).

Almost surely, 2^6324391 is an apocalyptic number.

6324391 is a deficient number, since it is larger than the sum of its proper divisors (372041).

6324391 is a wasteful number, since it uses less digits than its factorization.

6324391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372040.

The product of its digits is 3888, while the sum is 28.

The square root of 6324391 is about 2514.8341893652. The cubic root of 6324391 is about 184.9295178306.

The spelling of 6324391 in words is "six million, three hundred twenty-four thousand, three hundred ninety-one".