2218973 has 4 divisors (see below), whose sum is σ = 2252160. Its totient is φ = 2185788.

The previous prime is 2218969. The next prime is 2218999. The reversal of 2218973 is 3798122.

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 2218973 - 2² = 2218969 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 (2218903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16493 + ... + 16626.

It is an arithmetic number, because the mean of its divisors is an integer number (563040).

2^2218973 is an apocalyptic number.

It is an amenable number.

2218973 is a deficient number, since it is larger than the sum of its proper divisors (33187).

2218973 is an equidigital number, since it uses as much as digits as its factorization.

2218973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33186.

The product of its digits is 6048, while the sum is 32.

The square root of 2218973 is about 1489.6217640730. The cubic root of 2218973 is about 130.4319556408.

The spelling of 2218973 in words is "two million, two hundred eighteen thousand, nine hundred seventy-three".