22192397 has 2 divisors, whose sum is σ = 22192398. Its totient is φ = 22192396.

The previous prime is 22192367. The next prime is 22192403. The reversal of 22192397 is 79329122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17147881 + 5044516 = 4141^2 + 2246^2 .

It is a cyclic number.

It is not a de Polignac number, because 22192397 - 2⁶ = 22192333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22192367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11096198 + 11096199.

It is an arithmetic number, because the mean of its divisors is an integer number (11096199).

Almost surely, 2^22192397 is an apocalyptic number.

It is an amenable number.

22192397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22192397 is an equidigital number, since it uses as much as digits as its factorization.

22192397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 22192397 is about 4710.8807032231. The cubic root of 22192397 is about 281.0183876216.

The spelling of 22192397 in words is "twenty-two million, one hundred ninety-two thousand, three hundred ninety-seven".