6998855 has 8 divisors (see below), whose sum is σ = 8437632. Its totient is φ = 5573088.

The previous prime is 6998851. The next prime is 6998857. The reversal of 6998855 is 5588996.

It is a happy number.

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 6998855 - 2² = 6998851 is a prime.

It is a super-2 number, since 2×6998855² = 97967942622050, 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 (6998851) 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 7 ways as a sum of consecutive naturals, for example, 2024 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (1054704).

Almost surely, 2^6998855 is an apocalyptic number.

6998855 is a deficient number, since it is larger than the sum of its proper divisors (1438777).

6998855 is a wasteful number, since it uses less digits than its factorization.

6998855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505.

The product of its digits is 777600, while the sum is 50.

The square root of 6998855 is about 2645.5349175545. The cubic root of 6998855 is about 191.2826876790.

The spelling of 6998855 in words is "six million, nine hundred ninety-eight thousand, eight hundred fifty-five".