7220559 has 8 divisors (see below), whose sum is σ = 9663280. Its totient is φ = 4795776.

The previous prime is 7220557. The next prime is 7220569. The reversal of 7220559 is 9550227.

It is a happy number.

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

It is not a de Polignac number, because 7220559 - 2¹ = 7220557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220557) 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, 3514 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (1207910).

Almost surely, 2^7220559 is an apocalyptic number.

7220559 is a deficient number, since it is larger than the sum of its proper divisors (2442721).

7220559 is a wasteful number, since it uses less digits than its factorization.

7220559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 7220559 is about 2687.1097856247. The cubic root of 7220559 is about 193.2814938962.

The spelling of 7220559 in words is "seven million, two hundred twenty thousand, five hundred fifty-nine".