868418 has 4 divisors (see below), whose sum is σ = 1302630. Its totient is φ = 434208.

The previous prime is 868409. The next prime is 868423. The reversal of 868418 is 814868.

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

It can be written as a sum of positive squares in only one way, i.e., 528529 + 339889 = 727^2 + 583^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868418.

It is an unprimeable number.

868418 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 as a sum of consecutive naturals, namely, 217103 + ... + 217106.

2⁸⁶⁸⁴¹⁸ is an apocalyptic number.

868418 is a deficient number, since it is larger than the sum of its proper divisors (434212).

868418 is a wasteful number, since it uses less digits than its factorization.

868418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434211.

The product of its digits is 12288, while the sum is 35.

The square root of 868418 is about 931.8894784254. The cubic root of 868418 is about 95.4061283489.

The spelling of 868418 in words is "eight hundred sixty-eight thousand, four hundred eighteen".