1798001299 has 2 divisors, whose sum is σ = 1798001300. Its totient is φ = 1798001298.

The previous prime is 1798001297. The next prime is 1798001321. The reversal of 1798001299 is 9921008971.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1798001299 - 2¹ = 1798001297 is a prime.

Together with 1798001297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1798001297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899000649 + 899000650.

It is an arithmetic number, because the mean of its divisors is an integer number (899000650).

Almost surely, 2^1798001299 is an apocalyptic number.

1798001299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1798001299 is an equidigital number, since it uses as much as digits as its factorization.

1798001299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 1798001299 is about 42402.8454115994. The cubic root of 1798001299 is about 1215.9899915046.

The spelling of 1798001299 in words is "one billion, seven hundred ninety-eight million, one thousand, two hundred ninety-nine".