868653 has 6 divisors (see below), whose sum is σ = 1254734. Its totient is φ = 579096.

The previous prime is 868639. The next prime is 868663. The reversal of 868653 is 356868.

It can be written as a sum of positive squares in only one way, i.e., 751689 + 116964 = 867^2 + 342^2 .

It is not a de Polignac number, because 868653 - 2⁸ = 868397 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 (868603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48250 + ... + 48267.

2⁸⁶⁸⁶⁵³ is an apocalyptic number.

It is an amenable number.

868653 is a deficient number, since it is larger than the sum of its proper divisors (386081).

868653 is a wasteful number, since it uses less digits than its factorization.

868653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96523 (or 96520 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 868653 is about 932.0155578101. The cubic root of 868653 is about 95.4147334285.

It can be divided in two parts, 86865 and 3, that added together give a palindrome (86868).

The spelling of 868653 in words is "eight hundred sixty-eight thousand, six hundred fifty-three".