8531730473 has 4 divisors (see below), whose sum is σ = 9750549120. Its totient is φ = 7312911828.

The previous prime is 8531730461. The next prime is 8531730499. The reversal of 8531730473 is 3740371358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8531730473 - 2¹⁶ = 8531664937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8531730473.

It is not an unprimeable number, because it can be changed into a prime (8531730443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609409313 + ... + 609409326.

It is an arithmetic number, because the mean of its divisors is an integer number (2437637280).

Almost surely, 2^8531730473 is an apocalyptic number.

It is an amenable number.

8531730473 is a deficient number, since it is larger than the sum of its proper divisors (1218818647).

8531730473 is a wasteful number, since it uses less digits than its factorization.

8531730473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218818646.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 8531730473 is about 92367.3669268536. The cubic root of 8531730473 is about 2043.3638651427.

The spelling of 8531730473 in words is "eight billion, five hundred thirty-one million, seven hundred thirty thousand, four hundred seventy-three".