6898638 has 8 divisors (see below), whose sum is σ = 13797288. Its totient is φ = 2299544.

The previous prime is 6898637. The next prime is 6898663. The reversal of 6898638 is 8368986.

6898638 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

6898638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6898637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574881 + ... + 574892.

It is an arithmetic number, because the mean of its divisors is an integer number (1724661).

Almost surely, 2^6898638 is an apocalyptic number.

6898638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6898638 is a wasteful number, since it uses less digits than its factorization.

6898638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149778.

The product of its digits is 497664, while the sum is 48.

The square root of 6898638 is about 2626.5258422487. The cubic root of 6898638 is about 190.3652990629.

The spelling of 6898638 in words is "six million, eight hundred ninety-eight thousand, six hundred thirty-eight".