22197433 has 4 divisors (see below), whose sum is σ = 22207780. Its totient is φ = 22187088.

The previous prime is 22197431. The next prime is 22197443. The reversal of 22197433 is 33479122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14645929 + 7551504 = 3827^2 + 2748^2 .

It is a cyclic number.

It is not a de Polignac number, because 22197433 - 2¹ = 22197431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22197395 and 22197404.

It is not an unprimeable number, because it can be changed into a prime (22197431) 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, 618 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (5551945).

Almost surely, 2^22197433 is an apocalyptic number.

It is an amenable number.

22197433 is a deficient number, since it is larger than the sum of its proper divisors (10347).

22197433 is an equidigital number, since it uses as much as digits as its factorization.

22197433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10346.

The product of its digits is 9072, while the sum is 31.

The square root of 22197433 is about 4711.4151801768. The cubic root of 22197433 is about 281.0396426722.

The spelling of 22197433 in words is "twenty-two million, one hundred ninety-seven thousand, four hundred thirty-three".