12197773 has 4 divisors (see below), whose sum is σ = 13940320. Its totient is φ = 10455228.

The previous prime is 12197749. The next prime is 12197821. The reversal of 12197773 is 37779121.

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 not a de Polignac number, because 12197773 - 2¹³ = 12189581 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 (12197723) 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, 871263 + ... + 871276.

It is an arithmetic number, because the mean of its divisors is an integer number (3485080).

Almost surely, 2^12197773 is an apocalyptic number.

It is an amenable number.

12197773 is a deficient number, since it is larger than the sum of its proper divisors (1742547).

12197773 is an equidigital number, since it uses as much as digits as its factorization.

12197773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742546.

The product of its digits is 18522, while the sum is 37.

The square root of 12197773 is about 3492.5310306424. The cubic root of 12197773 is about 230.1937434941.

The spelling of 12197773 in words is "twelve million, one hundred ninety-seven thousand, seven hundred seventy-three".