864124009 has 8 divisors (see below), whose sum is σ = 1039547840. Its totient is φ = 701694576.

The previous prime is 864124003. The next prime is 864124021. The reversal of 864124009 is 900421468.

864124009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 864124009 - 2⁹ = 864123497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864124003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3248454 + ... + 3248719.

It is an arithmetic number, because the mean of its divisors is an integer number (129943480).

Almost surely, 2^864124009 is an apocalyptic number.

It is an amenable number.

864124009 is a deficient number, since it is larger than the sum of its proper divisors (175423831).

864124009 is a wasteful number, since it uses less digits than its factorization.

864124009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497199.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 864124009 is about 29395.9862736395. The cubic root of 864124009 is about 952.4861965975.

The spelling of 864124009 in words is "eight hundred sixty-four million, one hundred twenty-four thousand, nine".