868388 has 12 divisors (see below), whose sum is σ = 1585920. Its totient is φ = 415272.

The previous prime is 868381. The next prime is 868397. The reversal of 868388 is 883868.

It is a happy number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (868381) 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, 4628 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (132160).

2⁸⁶⁸³⁸⁸ is an apocalyptic number.

It is an amenable number.

868388 is a deficient number, since it is larger than the sum of its proper divisors (717532).

868388 is a wasteful number, since it uses less digits than its factorization.

868388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9466 (or 9464 counting only the distinct ones).

The product of its digits is 73728, while the sum is 41.

The square root of 868388 is about 931.8733819570. The cubic root of 868388 is about 95.4050297163.

The spelling of 868388 in words is "eight hundred sixty-eight thousand, three hundred eighty-eight".