868501 has 4 divisors (see below), whose sum is σ = 892012. Its totient is φ = 844992.

The previous prime is 868493. The next prime is 868529. The reversal of 868501 is 105868.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 828100 + 40401 = 910^2 + 201^2 .

It is a cyclic number.

It is not a de Polignac number, because 868501 - 2³ = 868493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 868501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868531) 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, 11700 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (223003).

2⁸⁶⁸⁵⁰¹ is an apocalyptic number.

It is an amenable number.

868501 is a deficient number, since it is larger than the sum of its proper divisors (23511).

868501 is a wasteful number, since it uses less digits than its factorization.

868501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23510.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 868501 is about 931.9340105394. The cubic root of 868501 is about 95.4091677671.

It can be divided in two parts, 868 and 501, that added together give a square (1369 = 37²).

The spelling of 868501 in words is "eight hundred sixty-eight thousand, five hundred one".