22196609 has 2 divisors, whose sum is σ = 22196610. Its totient is φ = 22196608.

The previous prime is 22196591. The next prime is 22196623. The reversal of 22196609 is 90669122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22118209 + 78400 = 4703^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 22196609 - 2²⁰ = 21148033 is a prime.

It is not a weakly prime, because it can be changed into another prime (22196309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11098304 + 11098305.

It is an arithmetic number, because the mean of its divisors is an integer number (11098305).

Almost surely, 2^22196609 is an apocalyptic number.

It is an amenable number.

22196609 is a deficient number, since it is larger than the sum of its proper divisors (1).

22196609 is an equidigital number, since it uses as much as digits as its factorization.

22196609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 22196609 is about 4711.3277321791. The cubic root of 22196609 is about 281.0361651000.

The spelling of 22196609 in words is "twenty-two million, one hundred ninety-six thousand, six hundred nine".