868612 has 12 divisors (see below), whose sum is σ = 1561420. Its totient is φ = 422496.

The previous prime is 868603. The next prime is 868613. The reversal of 868612 is 216868.

It can be written as a sum of positive squares in 2 ways, for example, as 427716 + 440896 = 654^2 + 664^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868613) by changing a digit.

868612 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2787 + ... + 3082.

2⁸⁶⁸⁶¹² is an apocalyptic number.

It is an amenable number.

868612 is a deficient number, since it is larger than the sum of its proper divisors (692808).

868612 is a wasteful number, since it uses less digits than its factorization.

868612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910 (or 5908 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 868612 is about 931.9935622095. The cubic root of 868612 is about 95.4132322285.

The spelling of 868612 in words is "eight hundred sixty-eight thousand, six hundred twelve".