8509463 has 4 divisors (see below), whose sum is σ = 8519448. Its totient is φ = 8499480.

The previous prime is 8509453. The next prime is 8509483. The reversal of 8509463 is 3649058.

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 8509463 - 2¹⁶ = 8443927 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 (8509433) 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, 3581 + ... + 5462.

It is an arithmetic number, because the mean of its divisors is an integer number (2129862).

Almost surely, 2^8509463 is an apocalyptic number.

8509463 is a deficient number, since it is larger than the sum of its proper divisors (9985).

8509463 is an equidigital number, since it uses as much as digits as its factorization.

8509463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9984.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 8509463 is about 2917.0983870963. The cubic root of 8509463 is about 204.1584617185.

It can be divided in two parts, 8 and 509463, that multiplied together give a palindrome (4075704).

The spelling of 8509463 in words is "eight million, five hundred nine thousand, four hundred sixty-three".