1798888799 has 2 divisors, whose sum is σ = 1798888800. Its totient is φ = 1798888798.

The previous prime is 1798888787. The next prime is 1798888823. The reversal of 1798888799 is 9978888971.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1798888799 - 2⁸ = 1798888543 is a prime.

It is a super-2 number, since 2×1798888799² = 6472001822335324802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1798888769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899444399 + 899444400.

It is an arithmetic number, because the mean of its divisors is an integer number (899444400).

Almost surely, 2^1798888799 is an apocalyptic number.

1798888799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1798888799 is an equidigital number, since it uses as much as digits as its factorization.

1798888799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 146313216, while the sum is 74.

The square root of 1798888799 is about 42413.3092201021. The cubic root of 1798888799 is about 1216.1900309600.

The spelling of 1798888799 in words is "one billion, seven hundred ninety-eight million, eight hundred eighty-eight thousand, seven hundred ninety-nine".