798173689 has 4 divisors (see below), whose sum is σ = 798508800. Its totient is φ = 797838580.

The previous prime is 798173687. The next prime is 798173707. The reversal of 798173689 is 986371897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 986371897 = 7 ⋅140910271.

It is a cyclic number.

It is not a de Polignac number, because 798173689 - 2¹ = 798173687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798173683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163957 + ... + 168754.

It is an arithmetic number, because the mean of its divisors is an integer number (199627200).

Almost surely, 2^798173689 is an apocalyptic number.

It is an amenable number.

798173689 is a deficient number, since it is larger than the sum of its proper divisors (335111).

798173689 is a wasteful number, since it uses less digits than its factorization.

798173689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335110.

The product of its digits is 4572288, while the sum is 58.

The square root of 798173689 is about 28251.9678783620. The cubic root of 798173689 is about 927.6108130885.

The spelling of 798173689 in words is "seven hundred ninety-eight million, one hundred seventy-three thousand, six hundred eighty-nine".