6899081 has 8 divisors (see below), whose sum is σ = 8139264. Its totient is φ = 5722560.

The previous prime is 6899077. The next prime is 6899099. The reversal of 6899081 is 1809986.

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 6899081 - 2² = 6899077 is a prime.

It is a super-2 number, since 2×6899081² = 95194637289122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6899281) 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, 15680 + ... + 16113.

It is an arithmetic number, because the mean of its divisors is an integer number (1017408).

Almost surely, 2^6899081 is an apocalyptic number.

It is an amenable number.

6899081 is a deficient number, since it is larger than the sum of its proper divisors (1240183).

6899081 is a wasteful number, since it uses less digits than its factorization.

6899081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31831.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 6899081 is about 2626.6101728273. The cubic root of 6899081 is about 190.3693737813.

The spelling of 6899081 in words is "six million, eight hundred ninety-nine thousand, eighty-one".