6916891 has 8 divisors (see below), whose sum is σ = 7206624. Its totient is φ = 6632640.

The previous prime is 6916883. The next prime is 6916919. The reversal of 6916891 is 1986196.

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

It is a cyclic number.

It is not a de Polignac number, because 6916891 - 2³ = 6916883 is a prime.

It is a super-2 number, since 2×6916891² = 95686762211762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6916291) 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, 1311 + ... + 3943.

It is an arithmetic number, because the mean of its divisors is an integer number (900828).

Almost surely, 2^6916891 is an apocalyptic number.

6916891 is a deficient number, since it is larger than the sum of its proper divisors (289733).

6916891 is a wasteful number, since it uses less digits than its factorization.

6916891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741.

The product of its digits is 23328, while the sum is 40.

The square root of 6916891 is about 2629.9982889728. The cubic root of 6916891 is about 190.5330460740.

The spelling of 6916891 in words is "six million, nine hundred sixteen thousand, eight hundred ninety-one".