868761 has 12 divisors (see below), whose sum is σ = 1271088. Its totient is φ = 571704.

The previous prime is 868741. The next prime is 868771. The reversal of 868761 is 167868.

It is not a de Polignac number, because 868761 - 2⁶ = 868697 is a prime.

It is a Curzon number.

868761 is a lucky number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (868741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166 + ... + 1328.

It is an arithmetic number, because the mean of its divisors is an integer number (105924).

2⁸⁶⁸⁷⁶¹ is an apocalyptic number.

It is an amenable number.

868761 is a deficient number, since it is larger than the sum of its proper divisors (402327).

868761 is a wasteful number, since it uses less digits than its factorization.

868761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1249 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 868761 is about 932.0734949563. The cubic root of 868761 is about 95.4186875829.

The spelling of 868761 in words is "eight hundred sixty-eight thousand, seven hundred sixty-one".