868292784 has 100 divisors (see below), whose sum is σ = 2539366984. Its totient is φ = 286405632.

The previous prime is 868292773. The next prime is 868292807. The reversal of 868292784 is 487292868.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 868292784.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 122259 + ... + 129165.

Almost surely, 2^868292784 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 868292784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269683492).

868292784 is an abundant number, since it is smaller than the sum of its proper divisors (1671074200).

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

868292784 is a wasteful number, since it uses less digits than its factorization.

868292784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024 (or 7009 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 868292784 is about 29466.8081746225. The cubic root of 868292784 is about 954.0154263555.

The spelling of 868292784 in words is "eight hundred sixty-eight million, two hundred ninety-two thousand, seven hundred eighty-four".