864346860 has 144 divisors (see below), whose sum is σ = 2972292960. Its totient is φ = 201553920.

The previous prime is 864346859. The next prime is 864346883. The reversal of 864346860 is 68643468.

864346860 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34740 + ... + 54180.

Almost surely, 2^864346860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864346860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486146480).

864346860 is an abundant number, since it is smaller than the sum of its proper divisors (2107946100).

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

864346860 is a wasteful number, since it uses less digits than its factorization.

864346860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19488 (or 19483 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 864346860 is about 29399.7765297629. The cubic root of 864346860 is about 952.5680692049.

The spelling of 864346860 in words is "eight hundred sixty-four million, three hundred forty-six thousand, eight hundred sixty".