868435123 has 4 divisors (see below), whose sum is σ = 919519560. Its totient is φ = 817350688.

The previous prime is 868435093. The next prime is 868435129. The reversal of 868435123 is 321534868.

868435123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 868435123 - 2⁵ = 868435091 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868435129) 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, 25542193 + ... + 25542226.

It is an arithmetic number, because the mean of its divisors is an integer number (229879890).

Almost surely, 2^868435123 is an apocalyptic number.

868435123 is a deficient number, since it is larger than the sum of its proper divisors (51084437).

868435123 is a wasteful number, since it uses less digits than its factorization.

868435123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51084436.

The product of its digits is 138240, while the sum is 40.

The square root of 868435123 is about 29469.2233185742. The cubic root of 868435123 is about 954.0675540037.

The spelling of 868435123 in words is "eight hundred sixty-eight million, four hundred thirty-five thousand, one hundred twenty-three".