798977219 has 2 divisors, whose sum is σ = 798977220. Its totient is φ = 798977218.

The previous prime is 798977177. The next prime is 798977293. The reversal of 798977219 is 912779897.

It is a weak prime.

It is an emirp because it is prime and its reverse (912779897) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798977219 is a prime.

It is a super-2 number, since 2×798977219² = 1276729192961947922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (798977719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399488609 + 399488610.

It is an arithmetic number, because the mean of its divisors is an integer number (399488610).

Almost surely, 2^798977219 is an apocalyptic number.

798977219 is a deficient number, since it is larger than the sum of its proper divisors (1).

798977219 is an equidigital number, since it uses as much as digits as its factorization.

798977219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000752, while the sum is 59.

The square root of 798977219 is about 28266.1850804101. The cubic root of 798977219 is about 927.9219872707.

The spelling of 798977219 in words is "seven hundred ninety-eight million, nine hundred seventy-seven thousand, two hundred nineteen".