6896391 has 8 divisors (see below), whose sum is σ = 9218160. Its totient is φ = 4586112.

The previous prime is 6896371. The next prime is 6896399. The reversal of 6896391 is 1936986.

6896391 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6896391 - 2⁶ = 6896327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6896399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356 + ... + 3953.

It is an arithmetic number, because the mean of its divisors is an integer number (1152270).

Almost surely, 2^6896391 is an apocalyptic number.

6896391 is a deficient number, since it is larger than the sum of its proper divisors (2321769).

6896391 is a wasteful number, since it uses less digits than its factorization.

6896391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745.

The product of its digits is 69984, while the sum is 42.

The square root of 6896391 is about 2626.0980560520. The cubic root of 6896391 is about 190.3446284476.

The spelling of 6896391 in words is "six million, eight hundred ninety-six thousand, three hundred ninety-one".