798505897 has 8 divisors (see below), whose sum is σ = 929797056.
Its totient is φ = 671519472.
The previous prime is 798505871. The next prime is 798505909.
798505897 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-798505897 is a prime.
It is a super-2 number, since 2×7985058972 = 1275223335087549218, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (798505817) 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 in 7 ways as a sum of consecutive naturals, for example, 1075783 + ... + 1076524.
It is an arithmetic number, because the mean of its divisors is an integer number (116224632).
Almost surely, 2798505897 is an apocalyptic number.
It is an amenable number.
798505897 is a deficient number, since it is larger than the sum of its proper divisors (131291159).
798505897 is a wasteful number, since it uses less digits than its factorization.
798505897 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2152367.
The product of its (nonzero) digits is 6350400, while the sum is 58.
The square root of 798505897 is about 28257.8466447817.
The cubic root of 798505897 is about 927.7394889202.
The spelling of 798505897 in words is "seven hundred ninety-eight million, five hundred five thousand, eight hundred ninety-seven".