798785279 has 4 divisors (see below), whose sum is σ = 802213776. Its totient is φ = 795356784.

The previous prime is 798785269. The next prime is 798785293. The reversal of 798785279 is 972587897.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 798785279 - 2⁴ = 798785263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798785269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713899 + ... + 1714364.

It is an arithmetic number, because the mean of its divisors is an integer number (200553444).

Almost surely, 2^798785279 is an apocalyptic number.

798785279 is a deficient number, since it is larger than the sum of its proper divisors (3428497).

798785279 is a wasteful number, since it uses less digits than its factorization.

798785279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428496.

The product of its digits is 17781120, while the sum is 62.

The square root of 798785279 is about 28262.7896535356. The cubic root of 798785279 is about 927.8476757608.

The spelling of 798785279 in words is "seven hundred ninety-eight million, seven hundred eighty-five thousand, two hundred seventy-nine".