868643352 has 96 divisors (see below), whose sum is σ = 2473532880. Its totient is φ = 285534720.

The previous prime is 868643309. The next prime is 868643353. The reversal of 868643352 is 253346868.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 868643298 and 868643307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868643353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138852 + ... + 144972.

Almost surely, 2^868643352 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 868643352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236766440).

868643352 is an abundant number, since it is smaller than the sum of its proper divisors (1604889528).

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

868643352 is a wasteful number, since it uses less digits than its factorization.

868643352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215 (or 6199 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 868643352 is about 29472.7560977931. The cubic root of 868643352 is about 954.1438017476.

The spelling of 868643352 in words is "eight hundred sixty-eight million, six hundred forty-three thousand, three hundred fifty-two".