868073864 has 32 divisors (see below), whose sum is σ = 1870931520. Its totient is φ = 369877056.

The previous prime is 868073863. The next prime is 868073893. The reversal of 868073864 is 468370868.

It is a happy number.

868073864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (868073863) 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, 35114 + ... + 54489.

It is an arithmetic number, because the mean of its divisors is an integer number (58466610).

Almost surely, 2^868073864 is an apocalyptic number.

It is an amenable number.

868073864 is an abundant number, since it is smaller than the sum of its proper divisors (1002857656).

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

868073864 is a wasteful number, since it uses less digits than its factorization.

868073864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89789 (or 89785 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 868073864 is about 29463.0932524065. The cubic root of 868073864 is about 953.9352419538.

The spelling of 868073864 in words is "eight hundred sixty-eight million, seventy-three thousand, eight hundred sixty-four".