864000651 has 4 divisors (see below), whose sum is σ = 1152000872. Its totient is φ = 576000432.

The previous prime is 864000649. The next prime is 864000689. The reversal of 864000651 is 156000468.

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

It is not a de Polignac number, because 864000651 - 2¹ = 864000649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864000691) 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, 144000106 + ... + 144000111.

It is an arithmetic number, because the mean of its divisors is an integer number (288000218).

Almost surely, 2^864000651 is an apocalyptic number.

864000651 is a deficient number, since it is larger than the sum of its proper divisors (288000221).

864000651 is a wasteful number, since it uses less digits than its factorization.

864000651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288000220.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 864000651 is about 29393.8879871309. The cubic root of 864000651 is about 952.4408703934.

The spelling of 864000651 in words is "eight hundred sixty-four million, six hundred fifty-one", and thus it is an aban number.