6722118 has 48 divisors (see below), whose sum is σ = 16380000. Its totient is φ = 1976832.

The previous prime is 6722117. The next prime is 6722129. The reversal of 6722118 is 8112276.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6722091 and 6722100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4758 + ... + 6006.

It is an arithmetic number, because the mean of its divisors is an integer number (341250).

Almost surely, 2^6722118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6722118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8190000).

6722118 is an abundant number, since it is smaller than the sum of its proper divisors (9657882).

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

6722118 is a wasteful number, since it uses less digits than its factorization.

6722118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1290 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 6722118 is about 2592.7047652982. The cubic root of 6722118 is about 188.7275826775.

The spelling of 6722118 in words is "six million, seven hundred twenty-two thousand, one hundred eighteen".