6898385 has 8 divisors (see below), whose sum is σ = 8914920. Its totient is φ = 5094144.

The previous prime is 6898363. The next prime is 6898417. The reversal of 6898385 is 5838986.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 6801664 = 311^2 + 2608^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6898385 is a prime.

It is a Curzon number.

It is a congruent number.

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, 53000 + ... + 53129.

It is an arithmetic number, because the mean of its divisors is an integer number (1114365).

Almost surely, 2^6898385 is an apocalyptic number.

6898385 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6898385 is a deficient number, since it is larger than the sum of its proper divisors (2016535).

6898385 is a wasteful number, since it uses less digits than its factorization.

6898385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106147.

The product of its digits is 414720, while the sum is 47.

The square root of 6898385 is about 2626.4776793264. The cubic root of 6898385 is about 190.3629718881.

The spelling of 6898385 in words is "six million, eight hundred ninety-eight thousand, three hundred eighty-five".