868846720 has 64 divisors (see below), whose sum is σ = 2373825600. Its totient is φ = 297888768.

The previous prime is 868846711. The next prime is 868846721. The reversal of 868846720 is 27648868.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (868846721) 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, 92490 + ... + 101449.

It is an arithmetic number, because the mean of its divisors is an integer number (37091025).

Almost surely, 2^868846720 is an apocalyptic number.

868846720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

868846720 is an abundant number, since it is smaller than the sum of its proper divisors (1504978880).

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

868846720 is a wasteful number, since it uses less digits than its factorization.

868846720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193965 (or 193953 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 868846720 is about 29476.2059973803. The cubic root of 868846720 is about 954.2182577657.

The spelling of 868846720 in words is "eight hundred sixty-eight million, eight hundred forty-six thousand, seven hundred twenty".