22197403 has 2 divisors, whose sum is σ = 22197404. Its totient is φ = 22197402.

The previous prime is 22197391. The next prime is 22197421. The reversal of 22197403 is 30479122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22197403 - 2²¹ = 20100251 is a prime.

It is not a weakly prime, because it can be changed into another prime (22197443) 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 as a sum of consecutive naturals, namely, 11098701 + 11098702.

It is an arithmetic number, because the mean of its divisors is an integer number (11098702).

Almost surely, 2^22197403 is an apocalyptic number.

22197403 is a deficient number, since it is larger than the sum of its proper divisors (1).

22197403 is an equidigital number, since it uses as much as digits as its factorization.

22197403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22197403 is about 4711.4119964189. The cubic root of 22197403 is about 281.0395160631.

The spelling of 22197403 in words is "twenty-two million, one hundred ninety-seven thousand, four hundred three".