6722881 has 8 divisors (see below), whose sum is σ = 7396128. Its totient is φ = 6110500.

The previous prime is 6722879. The next prime is 6722899. The reversal of 6722881 is 1882276.

It is not a de Polignac number, because 6722881 - 2¹ = 6722879 is a prime.

It is a super-2 number, since 2×6722881² = 90394257880322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6722801) 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, 1195 + ... + 3856.

It is an arithmetic number, because the mean of its divisors is an integer number (924516).

Almost surely, 2^6722881 is an apocalyptic number.

It is an amenable number.

6722881 is a deficient number, since it is larger than the sum of its proper divisors (673247).

6722881 is an equidigital number, since it uses as much as digits as its factorization.

6722881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084 (or 5062 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 6722881 is about 2592.8519047566. The cubic root of 6722881 is about 188.7347229715.

It can be divided in two parts, 672 and 2881, that added together give a palindrome (3553).

The spelling of 6722881 in words is "six million, seven hundred twenty-two thousand, eight hundred eighty-one".