868392 has 48 divisors (see below), whose sum is σ = 2689440. Its totient is φ = 247968.

The previous prime is 868381. The next prime is 868397. The reversal of 868392 is 293868.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868392.

It is not an unprimeable number, because it can be changed into a prime (868397) by changing a digit.

868392 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (56030).

2⁸⁶⁸³⁹² is an apocalyptic number.

It is an amenable number.

868392 is an abundant number, since it is smaller than the sum of its proper divisors (1821048).

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

868392 is a wasteful number, since it uses less digits than its factorization.

868392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742 (or 1735 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 868392 is about 931.8755281689. The cubic root of 868392 is about 95.4051762021.

The spelling of 868392 in words is "eight hundred sixty-eight thousand, three hundred ninety-two".