873717913 has 4 divisors (see below), whose sum is σ = 895028148. Its totient is φ = 852407680.

The previous prime is 873717883. The next prime is 873717917. The reversal of 873717913 is 319717378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319717378 = 2 ⋅159858689.

It can be written as a sum of positive squares in 2 ways, for example, as 443860624 + 429857289 = 21068^2 + 20733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-873717913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (873717917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10655056 + ... + 10655137.

It is an arithmetic number, because the mean of its divisors is an integer number (223757037).

Almost surely, 2^873717913 is an apocalyptic number.

It is an amenable number.

873717913 is a deficient number, since it is larger than the sum of its proper divisors (21310235).

873717913 is a wasteful number, since it uses less digits than its factorization.

873717913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21310234.

The product of its digits is 222264, while the sum is 46.

The square root of 873717913 is about 29558.7197456182. The cubic root of 873717913 is about 955.9982117606.

The spelling of 873717913 in words is "eight hundred seventy-three million, seven hundred seventeen thousand, nine hundred thirteen".