6709391 has 16 divisors (see below), whose sum is σ = 7526400. Its totient is φ = 5941728.

The previous prime is 6709387. The next prime is 6709397. The reversal of 6709391 is 1939076.

It is not a de Polignac number, because 6709391 - 2² = 6709387 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 (6709397) 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, 48200 + ... + 48338.

It is an arithmetic number, because the mean of its divisors is an integer number (470400).

Almost surely, 2^6709391 is an apocalyptic number.

6709391 is a deficient number, since it is larger than the sum of its proper divisors (817009).

6709391 is a wasteful number, since it uses less digits than its factorization.

6709391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 6709391 is about 2590.2492158092. The cubic root of 6709391 is about 188.6084013220.

The spelling of 6709391 in words is "six million, seven hundred nine thousand, three hundred ninety-one".