868677 has 4 divisors (see below), whose sum is σ = 1158240. Its totient is φ = 579116.

The previous prime is 868669. The next prime is 868691. The reversal of 868677 is 776868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 868677 - 2³ = 868669 is a prime.

It is a D-number.

868677 is a lucky number.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868677.

It is not an unprimeable number, because it can be changed into a prime (868697) 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, 144777 + ... + 144782.

It is an arithmetic number, because the mean of its divisors is an integer number (289560).

2⁸⁶⁸⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

868677 is a deficient number, since it is larger than the sum of its proper divisors (289563).

868677 is a wasteful number, since it uses less digits than its factorization.

868677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289562.

The product of its digits is 112896, while the sum is 42.

The square root of 868677 is about 932.0284330427. The cubic root of 868677 is about 95.4156121578.

Subtracting from 868677 its reverse (776868), we obtain a square (91809 = 303²).

The spelling of 868677 in words is "eight hundred sixty-eight thousand, six hundred seventy-seven".