6511898 has 16 divisors (see below), whose sum is σ = 10388736. Its totient is φ = 3054480.

The previous prime is 6511871. The next prime is 6511909. The reversal of 6511898 is 8981156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103 + ... + 3773.

It is an arithmetic number, because the mean of its divisors is an integer number (649296).

Almost surely, 2^6511898 is an apocalyptic number.

6511898 is a deficient number, since it is larger than the sum of its proper divisors (3876838).

6511898 is a wasteful number, since it uses less digits than its factorization.

6511898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749.

The product of its digits is 17280, while the sum is 38.

The square root of 6511898 is about 2551.8420797534. The cubic root of 6511898 is about 186.7393587349.

The spelling of 6511898 in words is "six million, five hundred eleven thousand, eight hundred ninety-eight".