19022797 has 2 divisors, whose sum is σ = 19022798. Its totient is φ = 19022796.

The previous prime is 19022791. The next prime is 19022821. The reversal of 19022797 is 79722091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13329801 + 5692996 = 3651^2 + 2386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19022797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19022791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9511398 + 9511399.

It is an arithmetic number, because the mean of its divisors is an integer number (9511399).

Almost surely, 2^19022797 is an apocalyptic number.

It is an amenable number.

19022797 is a deficient number, since it is larger than the sum of its proper divisors (1).

19022797 is an equidigital number, since it uses as much as digits as its factorization.

19022797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 19022797 is about 4361.5131548581. The cubic root of 19022797 is about 266.9468442392.

The spelling of 19022797 in words is "nineteen million, twenty-two thousand, seven hundred ninety-seven".