868742943 has 8 divisors (see below), whose sum is σ = 1189630128. Its totient is φ = 563508864.

The previous prime is 868742921. The next prime is 868743047. The reversal of 868742943 is 349247868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 868742943 - 2²² = 864548639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868742243) 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, 3913146 + ... + 3913367.

It is an arithmetic number, because the mean of its divisors is an integer number (148703766).

Almost surely, 2^868742943 is an apocalyptic number.

868742943 is a deficient number, since it is larger than the sum of its proper divisors (320887185).

868742943 is a wasteful number, since it uses less digits than its factorization.

868742943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826553.

The product of its digits is 2322432, while the sum is 51.

The square root of 868742943 is about 29474.4455927503. The cubic root of 868742943 is about 954.1802649304.

The spelling of 868742943 in words is "eight hundred sixty-eight million, seven hundred forty-two thousand, nine hundred forty-three".