6898161 has 4 divisors (see below), whose sum is σ = 9197552. Its totient is φ = 4598772.

The previous prime is 6898139. The next prime is 6898163. The reversal of 6898161 is 1618986.

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 not a de Polignac number, because 6898161 - 2⁶ = 6898097 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6898163) 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, 1149691 + ... + 1149696.

It is an arithmetic number, because the mean of its divisors is an integer number (2299388).

Almost surely, 2^6898161 is an apocalyptic number.

It is an amenable number.

6898161 is a deficient number, since it is larger than the sum of its proper divisors (2299391).

6898161 is a wasteful number, since it uses less digits than its factorization.

6898161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299390.

The product of its digits is 20736, while the sum is 39.

The square root of 6898161 is about 2626.4350363182. The cubic root of 6898161 is about 190.3609114171.

The spelling of 6898161 in words is "six million, eight hundred ninety-eight thousand, one hundred sixty-one".