6713421 has 16 divisors (see below), whose sum is σ = 10516800. Its totient is φ = 3755520.

The previous prime is 6713417. The next prime is 6713431. The reversal of 6713421 is 1243176.

It is not a de Polignac number, because 6713421 - 2² = 6713417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6713391 and 6713400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6713431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7396 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (657300).

Almost surely, 2^6713421 is an apocalyptic number.

It is an amenable number.

6713421 is a deficient number, since it is larger than the sum of its proper divisors (3803379).

6713421 is a wasteful number, since it uses less digits than its factorization.

6713421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15676.

The product of its digits is 1008, while the sum is 24.

The square root of 6713421 is about 2591.0270164551. The cubic root of 6713421 is about 188.6461563495.

Adding to 6713421 its reverse (1243176), we get a palindrome (7956597).

The spelling of 6713421 in words is "six million, seven hundred thirteen thousand, four hundred twenty-one".