973223539 has 4 divisors (see below), whose sum is σ = 979668880. Its totient is φ = 966778200.

The previous prime is 973223533. The next prime is 973223561. The reversal of 973223539 is 935322379.

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

It is a cyclic number.

It is not a de Polignac number, because 973223539 - 2²³ = 964834931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 973223495 and 973223504.

It is not an unprimeable number, because it can be changed into a prime (973223533) 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, 3222444 + ... + 3222745.

It is an arithmetic number, because the mean of its divisors is an integer number (244917220).

Almost surely, 2^973223539 is an apocalyptic number.

973223539 is a deficient number, since it is larger than the sum of its proper divisors (6445341).

973223539 is a wasteful number, since it uses less digits than its factorization.

973223539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445340.

The product of its digits is 306180, while the sum is 43.

The square root of 973223539 is about 31196.5308808528. The cubic root of 973223539 is about 990.9936420315.

The spelling of 973223539 in words is "nine hundred seventy-three million, two hundred twenty-three thousand, five hundred thirty-nine".