873504543 has 4 divisors (see below), whose sum is σ = 1164672728. Its totient is φ = 582336360.

The previous prime is 873504539. The next prime is 873504553. The reversal of 873504543 is 345405378.

873504543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 873504543 - 2² = 873504539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873504553) 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, 145584088 + ... + 145584093.

It is an arithmetic number, because the mean of its divisors is an integer number (291168182).

Almost surely, 2^873504543 is an apocalyptic number.

873504543 is a deficient number, since it is larger than the sum of its proper divisors (291168185).

873504543 is a wasteful number, since it uses less digits than its factorization.

873504543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291168184.

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 873504543 is about 29555.1102687843. The cubic root of 873504543 is about 955.9203842214.

The spelling of 873504543 in words is "eight hundred seventy-three million, five hundred four thousand, five hundred forty-three".