798913 has 4 divisors (see below), whose sum is σ = 801108. Its totient is φ = 796720.

The previous prime is 798911. The next prime is 798923. The reversal of 798913 is 319897.

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 304704 + 494209 = 552^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 798913 - 2¹ = 798911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406 + ... + 1327.

It is an arithmetic number, because the mean of its divisors is an integer number (200277).

2⁷⁹⁸⁹¹³ is an apocalyptic number.

It is an amenable number.

798913 is a deficient number, since it is larger than the sum of its proper divisors (2195).

798913 is a wasteful number, since it uses less digits than its factorization.

798913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194.

The product of its digits is 13608, while the sum is 37.

The square root of 798913 is about 893.8193329751. The cubic root of 798913 is about 92.7897125561.

It can be divided in two parts, 798 and 913, that added together give a triangular number (1711 = T₅₈).

The spelling of 798913 in words is "seven hundred ninety-eight thousand, nine hundred thirteen".