798614389 has 4 divisors (see below), whose sum is σ = 845591724. Its totient is φ = 751637056.

The previous prime is 798614381. The next prime is 798614413. The reversal of 798614389 is 983416897.

798614389 = 4830² + 4831² + ... + 4863².

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

It can be written as a sum of positive squares in 2 ways, for example, as 751582225 + 47032164 = 27415^2 + 6858^2 .

It is a cyclic number.

It is not a de Polignac number, because 798614389 - 2³ = 798614381 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 (798614381) 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 in 3 ways as a sum of consecutive naturals, for example, 23488642 + ... + 23488675.

It is an arithmetic number, because the mean of its divisors is an integer number (211397931).

Almost surely, 2^798614389 is an apocalyptic number.

It is an amenable number.

798614389 is a deficient number, since it is larger than the sum of its proper divisors (46977335).

798614389 is a wasteful number, since it uses less digits than its factorization.

798614389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46977334.

The product of its digits is 2612736, while the sum is 55.

The square root of 798614389 is about 28259.7662587644. The cubic root of 798614389 is about 927.7815039530.

The spelling of 798614389 in words is "seven hundred ninety-eight million, six hundred fourteen thousand, three hundred eighty-nine".