868655320 has 32 divisors (see below), whose sum is σ = 2104819920. Its totient is φ = 320734080.

The previous prime is 868655303. The next prime is 868655351. The reversal of 868655320 is 23556868.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834726 + ... + 835765.

Almost surely, 2^868655320 is an apocalyptic number.

It is an amenable number.

868655320 is an abundant number, since it is smaller than the sum of its proper divisors (1236164600).

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

868655320 is a wasteful number, since it uses less digits than its factorization.

868655320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670515 (or 1670511 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 868655320 is about 29472.9591320587. The cubic root of 868655320 is about 954.1481837303.

The spelling of 868655320 in words is "eight hundred sixty-eight million, six hundred fifty-five thousand, three hundred twenty".