19796417 has 2 divisors, whose sum is σ = 19796418. Its totient is φ = 19796416.

The previous prime is 19796411. The next prime is 19796419. The reversal of 19796417 is 71469791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18627856 + 1168561 = 4316^2 + 1081^2 .

It is a cyclic number.

It is not a de Polignac number, because 19796417 - 2¹⁰ = 19795393 is a prime.

Together with 19796419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19796411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9898208 + 9898209.

It is an arithmetic number, because the mean of its divisors is an integer number (9898209).

Almost surely, 2^19796417 is an apocalyptic number.

It is an amenable number.

19796417 is a deficient number, since it is larger than the sum of its proper divisors (1).

19796417 is an equidigital number, since it uses as much as digits as its factorization.

19796417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 44.

The square root of 19796417 is about 4449.3164643572. The cubic root of 19796417 is about 270.5176033453.

The spelling of 19796417 in words is "nineteen million, seven hundred ninety-six thousand, four hundred seventeen".