6890871 has 16 divisors (see below), whose sum is σ = 9991520. Its totient is φ = 4199040.

The previous prime is 6890861. The next prime is 6890957. The reversal of 6890871 is 1780986.

It is not a de Polignac number, because 6890871 - 2¹³ = 6882679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890801) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3441 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (624470).

Almost surely, 2^6890871 is an apocalyptic number.

6890871 is a deficient number, since it is larger than the sum of its proper divisors (3100649).

6890871 is a wasteful number, since it uses less digits than its factorization.

6890871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 6890871 is about 2625.0468567247. The cubic root of 6890871 is about 190.2938297613.

The spelling of 6890871 in words is "six million, eight hundred ninety thousand, eight hundred seventy-one".