6345679 has 4 divisors (see below), whose sum is σ = 6380920. Its totient is φ = 6310440.

The previous prime is 6345673. The next prime is 6345683. The reversal of 6345679 is 9765436.

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 6345679 - 2⁷ = 6345551 is a prime.

It is an Ulam 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 (6345673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17349 + ... + 17710.

It is an arithmetic number, because the mean of its divisors is an integer number (1595230).

Almost surely, 2^6345679 is an apocalyptic number.

6345679 is a deficient number, since it is larger than the sum of its proper divisors (35241).

6345679 is a wasteful number, since it uses less digits than its factorization.

6345679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35240.

The product of its digits is 136080, while the sum is 40.

The square root of 6345679 is about 2519.0631194950. The cubic root of 6345679 is about 185.1367773506.

The spelling of 6345679 in words is "six million, three hundred forty-five thousand, six hundred seventy-nine".