6657898 has 16 divisors (see below), whose sum is σ = 10827936. Its totient is φ = 3052080.

The previous prime is 6657887. The next prime is 6657919. The reversal of 6657898 is 8987566.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3453 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (676746).

Almost surely, 2^6657898 is an apocalyptic number.

6657898 is a deficient number, since it is larger than the sum of its proper divisors (4170038).

6657898 is a wasteful number, since it uses less digits than its factorization.

6657898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749.

The product of its digits is 725760, while the sum is 49.

The square root of 6657898 is about 2580.2902937460. The cubic root of 6657898 is about 188.1246532593.

The spelling of 6657898 in words is "six million, six hundred fifty-seven thousand, eight hundred ninety-eight".