6618898 has 16 divisors (see below), whose sum is σ = 11664576. Its totient is φ = 2777040.

The previous prime is 6618853. The next prime is 6618901. The reversal of 6618898 is 8988166.

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, 11286 + ... + 11857.

It is an arithmetic number, because the mean of its divisors is an integer number (729036).

Almost surely, 2^6618898 is an apocalyptic number.

6618898 is a deficient number, since it is larger than the sum of its proper divisors (5045678).

6618898 is a wasteful number, since it uses less digits than its factorization.

6618898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23169.

The product of its digits is 165888, while the sum is 46.

The square root of 6618898 is about 2572.7219049093. The cubic root of 6618898 is about 187.7566074685.

It can be divided in two parts, 661 and 8898, that added together give a palindrome (9559).

The spelling of 6618898 in words is "six million, six hundred eighteen thousand, eight hundred ninety-eight".