8572872943 has 4 divisors (see below), whose sum is σ = 8629647088. Its totient is φ = 8516098800.

The previous prime is 8572872923. The next prime is 8572872949. The reversal of 8572872943 is 3492782758.

It is a happy number.

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 8572872943 - 2⁵ = 8572872911 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 (8572872949) 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, 28386846 + ... + 28387147.

It is an arithmetic number, because the mean of its divisors is an integer number (2157411772).

Almost surely, 2^8572872943 is an apocalyptic number.

8572872943 is a deficient number, since it is larger than the sum of its proper divisors (56774145).

8572872943 is a wasteful number, since it uses less digits than its factorization.

8572872943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56774144.

The product of its digits is 6773760, while the sum is 55.

The square root of 8572872943 is about 92589.8101466895. The cubic root of 8572872943 is about 2046.6431632326.

The spelling of 8572872943 in words is "eight billion, five hundred seventy-two million, eight hundred seventy-two thousand, nine hundred forty-three".