6898641 has 4 divisors (see below), whose sum is σ = 9198192. Its totient is φ = 4599092.

The previous prime is 6898637. The next prime is 6898663. The reversal of 6898641 is 1468986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6898641 - 2² = 6898637 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 6898593 and 6898602.

It is not an unprimeable number, because it can be changed into a prime (6898601) 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, 1149771 + ... + 1149776.

It is an arithmetic number, because the mean of its divisors is an integer number (2299548).

Almost surely, 2^6898641 is an apocalyptic number.

It is an amenable number.

6898641 is a deficient number, since it is larger than the sum of its proper divisors (2299551).

6898641 is a wasteful number, since it uses less digits than its factorization.

6898641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299550.

The product of its digits is 82944, while the sum is 42.

The square root of 6898641 is about 2626.5264133452. The cubic root of 6898641 is about 190.3653266575.

The spelling of 6898641 in words is "six million, eight hundred ninety-eight thousand, six hundred forty-one".