7220797 has 8 divisors (see below), whose sum is σ = 7653240. Its totient is φ = 6800640.

The previous prime is 7220789. The next prime is 7220803. The reversal of 7220797 is 7970227.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 900601 + 6320196 = 949^2 + 2514^2 .

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 7220797 - 2³ = 7220789 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 (7220747) 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, 1848 + ... + 4225.

It is an arithmetic number, because the mean of its divisors is an integer number (956655).

Almost surely, 2^7220797 is an apocalyptic number.

It is an amenable number.

7220797 is a deficient number, since it is larger than the sum of its proper divisors (432443).

7220797 is a wasteful number, since it uses less digits than its factorization.

7220797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 7220797 is about 2687.1540707596. The cubic root of 7220797 is about 193.2836174848.

The spelling of 7220797 in words is "seven million, two hundred twenty thousand, seven hundred ninety-seven".