868847 has 4 divisors (see below), whose sum is σ = 992976. Its totient is φ = 744720.

The previous prime is 868841. The next prime is 868849. The reversal of 868847 is 748868.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 868847 - 2⁶ = 868783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868841) 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, 62054 + ... + 62067.

It is an arithmetic number, because the mean of its divisors is an integer number (248244).

2⁸⁶⁸⁸⁴⁷ is an apocalyptic number.

868847 is a deficient number, since it is larger than the sum of its proper divisors (124129).

868847 is a wasteful number, since it uses less digits than its factorization.

868847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124128.

The product of its digits is 86016, while the sum is 41.

The square root of 868847 is about 932.1196275157. The cubic root of 868847 is about 95.4218360270.

The spelling of 868847 in words is "eight hundred sixty-eight thousand, eight hundred forty-seven".