6865398 has 20 divisors (see below), whose sum is σ = 15383940. Its totient is φ = 2288412.

The previous prime is 6865393. The next prime is 6865451. The reversal of 6865398 is 8935686.

6865398 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6865393) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21028 + ... + 21351.

It is an arithmetic number, because the mean of its divisors is an integer number (769197).

Almost surely, 2^6865398 is an apocalyptic number.

6865398 is an abundant number, since it is smaller than the sum of its proper divisors (8518542).

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

6865398 is a wasteful number, since it uses less digits than its factorization.

6865398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42393 (or 42384 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6865398 is about 2620.1904510932. The cubic root of 6865398 is about 190.0590582798.

It can be divided in two parts, 686 and 5398, that added together give a square (6084 = 78²).

The spelling of 6865398 in words is "six million, eight hundred sixty-five thousand, three hundred ninety-eight".