6752221 has 8 divisors (see below), whose sum is σ = 7735424. Its totient is φ = 5773680.

The previous prime is 6752219. The next prime is 6752231. The reversal of 6752221 is 1222576.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6752221 - 2¹ = 6752219 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6752231) 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, 2896 + ... + 4678.

It is an arithmetic number, because the mean of its divisors is an integer number (966928).

Almost surely, 2^6752221 is an apocalyptic number.

It is an amenable number.

6752221 is a deficient number, since it is larger than the sum of its proper divisors (983203).

6752221 is a wasteful number, since it uses less digits than its factorization.

6752221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331.

The product of its digits is 1680, while the sum is 25.

The square root of 6752221 is about 2598.5036078482. The cubic root of 6752221 is about 189.0088832457.

Adding to 6752221 its reverse (1222576), we get a palindrome (7974797).

The spelling of 6752221 in words is "six million, seven hundred fifty-two thousand, two hundred twenty-one".