6871398 has 16 divisors (see below), whose sum is σ = 14186496. Its totient is φ = 2216520.

The previous prime is 6871351. The next prime is 6871399. The reversal of 6871398 is 8931786.

It is a super-2 number, since 2×6871398² = 94432220948808, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6871399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18286 + ... + 18657.

It is an arithmetic number, because the mean of its divisors is an integer number (886656).

Almost surely, 2^6871398 is an apocalyptic number.

6871398 is an abundant number, since it is smaller than the sum of its proper divisors (7315098).

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

6871398 is a wasteful number, since it uses less digits than its factorization.

6871398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36979.

The product of its digits is 72576, while the sum is 42.

The square root of 6871398 is about 2621.3351559844. The cubic root of 6871398 is about 190.1144093950.

The spelling of 6871398 in words is "six million, eight hundred seventy-one thousand, three hundred ninety-eight".