873031913 has 8 divisors (see below), whose sum is σ = 949882248. Its totient is φ = 797566464.

The previous prime is 873031891. The next prime is 873031933. The reversal of 873031913 is 319130378.

It can be written as a sum of positive squares in 4 ways, for example, as 75986089 + 797045824 = 8717^2 + 28232^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 873031913 - 2⁶ = 873031849 is a prime.

It is a super-2 number, since 2×873031913² = 1524369442232879138, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (873031933) 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 7 ways as a sum of consecutive naturals, for example, 344906 + ... + 347427.

It is an arithmetic number, because the mean of its divisors is an integer number (118735281).

Almost surely, 2^873031913 is an apocalyptic number.

It is an amenable number.

873031913 is a deficient number, since it is larger than the sum of its proper divisors (76850335).

873031913 is a wasteful number, since it uses less digits than its factorization.

873031913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692443.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 873031913 is about 29547.1134461558. The cubic root of 873031913 is about 955.7479454461.

The spelling of 873031913 in words is "eight hundred seventy-three million, thirty-one thousand, nine hundred thirteen".