798817719 has 16 divisors (see below), whose sum is σ = 1246936320. Its totient is φ = 445333440.

The previous prime is 798817717. The next prime is 798817759. The reversal of 798817719 is 917718897.

It is not a de Polignac number, because 798817719 - 2¹ = 798817717 is a prime.

It is a super-2 number, since 2×798817719² = 1276219496376725922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798817711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463029 + ... + 464750.

It is an arithmetic number, because the mean of its divisors is an integer number (77933520).

Almost surely, 2^798817719 is an apocalyptic number.

798817719 is a deficient number, since it is larger than the sum of its proper divisors (448118601).

798817719 is a wasteful number, since it uses less digits than its factorization.

798817719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927830.

The product of its digits is 1778112, while the sum is 57.

The square root of 798817719 is about 28263.3635471789. The cubic root of 798817719 is about 927.8602360704.

The spelling of 798817719 in words is "seven hundred ninety-eight million, eight hundred seventeen thousand, seven hundred nineteen".