6344391 has 4 divisors (see below), whose sum is σ = 8459192. Its totient is φ = 4229592.

The previous prime is 6344369. The next prime is 6344399. The reversal of 6344391 is 1934436.

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

It is not a de Polignac number, because 6344391 - 2⁹ = 6343879 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6344399) 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, 1057396 + ... + 1057401.

It is an arithmetic number, because the mean of its divisors is an integer number (2114798).

Almost surely, 2^6344391 is an apocalyptic number.

6344391 is a deficient number, since it is larger than the sum of its proper divisors (2114801).

6344391 is a wasteful number, since it uses less digits than its factorization.

6344391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114800.

The product of its digits is 7776, while the sum is 30.

The square root of 6344391 is about 2518.8074559204. The cubic root of 6344391 is about 185.1242505953.

The spelling of 6344391 in words is "six million, three hundred forty-four thousand, three hundred ninety-one".