6877221 has 16 divisors (see below), whose sum is σ = 10395840. Its totient is φ = 4008960.

The previous prime is 6877219. The next prime is 6877223. The reversal of 6877221 is 1227786.

It is an interprime number because it is at equal distance from previous prime (6877219) and next prime (6877223).

It is not a de Polignac number, because 6877221 - 2¹ = 6877219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6877223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3900 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (649740).

Almost surely, 2^6877221 is an apocalyptic number.

It is an amenable number.

6877221 is a deficient number, since it is larger than the sum of its proper divisors (3518619).

6877221 is a wasteful number, since it uses less digits than its factorization.

6877221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9316.

The product of its digits is 9408, while the sum is 33.

The square root of 6877221 is about 2622.4456143074. The cubic root of 6877221 is about 190.1680968515.

The spelling of 6877221 in words is "six million, eight hundred seventy-seven thousand, two hundred twenty-one".