6898679 has 4 divisors (see below), whose sum is σ = 6918576. Its totient is φ = 6878784.

The previous prime is 6898667. The next prime is 6898739. The reversal of 6898679 is 9768986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9768986 = 2 ⋅4884493.

It is a cyclic number.

It is not a de Polignac number, because 6898679 - 2⁴ = 6898663 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 6898679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6898609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9419 + ... + 10124.

It is an arithmetic number, because the mean of its divisors is an integer number (1729644).

Almost surely, 2^6898679 is an apocalyptic number.

6898679 is a deficient number, since it is larger than the sum of its proper divisors (19897).

6898679 is a wasteful number, since it uses less digits than its factorization.

6898679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19896.

The product of its digits is 1306368, while the sum is 53.

The square root of 6898679 is about 2626.5336472240. The cubic root of 6898679 is about 190.3656761886.

The spelling of 6898679 in words is "six million, eight hundred ninety-eight thousand, six hundred seventy-nine".