2220797 has 4 divisors (see below), whose sum is σ = 2268096. Its totient is φ = 2173500.

The previous prime is 2220787. The next prime is 2220839. The reversal of 2220797 is 7970222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2220797 - 2¹⁰ = 2219773 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 (2220787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23579 + ... + 23672.

It is an arithmetic number, because the mean of its divisors is an integer number (567024).

2^2220797 is an apocalyptic number.

It is an amenable number.

2220797 is a deficient number, since it is larger than the sum of its proper divisors (47299).

2220797 is an equidigital number, since it uses as much as digits as its factorization.

2220797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47298.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 2220797 is about 1490.2338742627. The cubic root of 2220797 is about 130.4676842910.

The spelling of 2220797 in words is "two million, two hundred twenty thousand, seven hundred ninety-seven".