8523674521 has 4 divisors (see below), whose sum is σ = 8525034000. Its totient is φ = 8522315044.

The previous prime is 8523674503. The next prime is 8523674543. The reversal of 8523674521 is 1254763258.

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 8523674521 - 2¹¹ = 8523672473 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8523674221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670291 + ... + 682888.

It is an arithmetic number, because the mean of its divisors is an integer number (2131258500).

Almost surely, 2^8523674521 is an apocalyptic number.

It is an amenable number.

8523674521 is a deficient number, since it is larger than the sum of its proper divisors (1359479).

8523674521 is a wasteful number, since it uses less digits than its factorization.

8523674521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359478.

The product of its digits is 403200, while the sum is 43.

The square root of 8523674521 is about 92323.7484128542. The cubic root of 8523674521 is about 2042.7205245731.

The spelling of 8523674521 in words is "eight billion, five hundred twenty-three million, six hundred seventy-four thousand, five hundred twenty-one".