8472531 has 4 divisors (see below), whose sum is σ = 11296712. Its totient is φ = 5648352.

The previous prime is 8472523. The next prime is 8472539. The reversal of 8472531 is 1352748.

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

It is an interprime number because it is at equal distance from previous prime (8472523) and next prime (8472539).

It is not a de Polignac number, because 8472531 - 2³ = 8472523 is a prime.

It is a super-3 number, since 3×8472531³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8472539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412086 + ... + 1412091.

It is an arithmetic number, because the mean of its divisors is an integer number (2824178).

Almost surely, 2^8472531 is an apocalyptic number.

8472531 is a deficient number, since it is larger than the sum of its proper divisors (2824181).

8472531 is a wasteful number, since it uses less digits than its factorization.

8472531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824180.

The product of its digits is 6720, while the sum is 30.

The square root of 8472531 is about 2910.7612406379. The cubic root of 8472531 is about 203.8626767084.

The spelling of 8472531 in words is "eight million, four hundred seventy-two thousand, five hundred thirty-one".