8634723856 has 40 divisors (see below), whose sum is σ = 18256644000. Its totient is φ = 3923589120.

The previous prime is 8634723829. The next prime is 8634723857. The reversal of 8634723856 is 6583274368.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8634723857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715440 + ... + 727408.

It is an arithmetic number, because the mean of its divisors is an integer number (456416100).

Almost surely, 2^8634723856 is an apocalyptic number.

It is an amenable number.

8634723856 is an abundant number, since it is smaller than the sum of its proper divisors (9621920144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8634723856 is a wasteful number, since it uses less digits than its factorization.

8634723856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16087 (or 16081 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 52.

The square root of 8634723856 is about 92923.2148389196. The cubic root of 8634723856 is about 2051.5533621026.

The spelling of 8634723856 in words is "eight billion, six hundred thirty-four million, seven hundred twenty-three thousand, eight hundred fifty-six".