868921343 has 4 divisors (see below), whose sum is σ = 868983840. Its totient is φ = 868858848.

The previous prime is 868921309. The next prime is 868921349. The reversal of 868921343 is 343129868.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868921343 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 868921294 and 868921303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868921349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 41687.

It is an arithmetic number, because the mean of its divisors is an integer number (217245960).

Almost surely, 2^868921343 is an apocalyptic number.

868921343 is a deficient number, since it is larger than the sum of its proper divisors (62497).

868921343 is a wasteful number, since it uses less digits than its factorization.

868921343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62496.

The product of its digits is 248832, while the sum is 44.

The square root of 868921343 is about 29477.4717877908. The cubic root of 868921343 is about 954.2455754306.

The spelling of 868921343 in words is "eight hundred sixty-eight million, nine hundred twenty-one thousand, three hundred forty-three".