6898859 has 4 divisors (see below), whose sum is σ = 7526040. Its totient is φ = 6271680.

The previous prime is 6898841. The next prime is 6898861. The reversal of 6898859 is 9588986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6898859 - 2¹² = 6894763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6898859.

It is not an unprimeable number, because it can be changed into a prime (6898819) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 313574 + ... + 313595.

It is an arithmetic number, because the mean of its divisors is an integer number (1881510).

Almost surely, 2^6898859 is an apocalyptic number.

6898859 is a deficient number, since it is larger than the sum of its proper divisors (627181).

6898859 is a wasteful number, since it uses less digits than its factorization.

6898859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627180.

The product of its digits is 1244160, while the sum is 53.

The square root of 6898859 is about 2626.5679126952. The cubic root of 6898859 is about 190.3673318449.

The spelling of 6898859 in words is "six million, eight hundred ninety-eight thousand, eight hundred fifty-nine".