6896309 has 6 divisors (see below), whose sum is σ = 8022294. Its totient is φ = 5911080.

The previous prime is 6896303. The next prime is 6896311. The reversal of 6896309 is 9036986.

It can be written as a sum of positive squares in only one way, i.e., 5866084 + 1030225 = 2422^2 + 1015^2 .

It is not a de Polignac number, because 6896309 - 2⁴ = 6896293 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6896303) 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 5 ways as a sum of consecutive naturals, for example, 70322 + ... + 70419.

It is an arithmetic number, because the mean of its divisors is an integer number (1337049).

Almost surely, 2^6896309 is an apocalyptic number.

It is an amenable number.

6896309 is a deficient number, since it is larger than the sum of its proper divisors (1125985).

6896309 is a wasteful number, since it uses less digits than its factorization.

6896309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140755 (or 140748 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 6896309 is about 2626.0824434888. The cubic root of 6896309 is about 190.3438740278.

The spelling of 6896309 in words is "six million, eight hundred ninety-six thousand, three hundred nine".