1797448019 has 2 divisors, whose sum is σ = 1797448020. Its totient is φ = 1797448018.

The previous prime is 1797448001. The next prime is 1797448027. The reversal of 1797448019 is 9108447971.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1797448019 - 2⁸ = 1797447763 is a prime.

It is a super-2 number, since 2×1797448019² = 6461638762014048722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1797448099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898724009 + 898724010.

It is an arithmetic number, because the mean of its divisors is an integer number (898724010).

Almost surely, 2^1797448019 is an apocalyptic number.

1797448019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797448019 is an equidigital number, since it uses as much as digits as its factorization.

1797448019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 1797448019 is about 42396.3208191466. The cubic root of 1797448019 is about 1215.8652507783.

The spelling of 1797448019 in words is "one billion, seven hundred ninety-seven million, four hundred forty-eight thousand, nineteen".