6899998 has 16 divisors (see below), whose sum is σ = 11952864. Its totient is φ = 2926080.

The previous prime is 6899989. The next prime is 6900001. The reversal of 6899998 is 8999986.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183 + ... + 3898.

It is an arithmetic number, because the mean of its divisors is an integer number (747054).

Almost surely, 2^6899998 is an apocalyptic number.

6899998 is a deficient number, since it is larger than the sum of its proper divisors (5052866).

6899998 is a wasteful number, since it uses less digits than its factorization.

6899998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187.

The product of its digits is 2519424, while the sum is 58.

The square root of 6899998 is about 2626.7847266192. The cubic root of 6899998 is about 190.3778078023.

The spelling of 6899998 in words is "six million, eight hundred ninety-nine thousand, nine hundred ninety-eight".