2197773 has 20 divisors (see below), whose sum is σ = 3364768. Its totient is φ = 1428840.

The previous prime is 2197771. The next prime is 2197781. The reversal of 2197773 is 3777912.

It is not a de Polignac number, because 2197773 - 2¹ = 2197771 is a prime.

It is a Duffinian number.

Its product of digits (18522) is a multiple of the sum of its prime factors (686).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197771) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3168 + ... + 3798.

2^2197773 is an apocalyptic number.

It is an amenable number.

2197773 is a deficient number, since it is larger than the sum of its proper divisors (1166995).

2197773 is an equidigital number, since it uses as much as digits as its factorization.

2197773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 677 counting only the distinct ones).

The product of its digits is 18522, while the sum is 36.

The square root of 2197773 is about 1482.4887857923. The cubic root of 2197773 is about 130.0152447605.

The spelling of 2197773 in words is "two million, one hundred ninety-seven thousand, seven hundred seventy-three".