1797874847 has 2 divisors, whose sum is σ = 1797874848. Its totient is φ = 1797874846.

The previous prime is 1797874843. The next prime is 1797874891. The reversal of 1797874847 is 7484787971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1797874847 - 2² = 1797874843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1797874847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1797874843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898937423 + 898937424.

It is an arithmetic number, because the mean of its divisors is an integer number (898937424).

Almost surely, 2^1797874847 is an apocalyptic number.

1797874847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797874847 is an equidigital number, since it uses as much as digits as its factorization.

1797874847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22127616, while the sum is 62.

The square root of 1797874847 is about 42401.3543062011. The cubic root of 1797874847 is about 1215.9614843002.

The spelling of 1797874847 in words is "one billion, seven hundred ninety-seven million, eight hundred seventy-four thousand, eight hundred forty-seven".