866682 has 24 divisors (see below), whose sum is σ = 1902420. Its totient is φ = 285120.

The previous prime is 866653. The next prime is 866683. The reversal of 866682 is 286668.

It can be written as a sum of positive squares in 2 ways, for example, as 826281 + 40401 = 909^2 + 201^2 .

It is a super-2 number, since 2×866682² = 1502275378248, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 866682.

It is not an unprimeable number, because it can be changed into a prime (866683) by changing a digit.

866682 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 11 ways as a sum of consecutive naturals, for example, 1332 + ... + 1872.

2⁸⁶⁶⁶⁸² is an apocalyptic number.

866682 is an abundant number, since it is smaller than the sum of its proper divisors (1035738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866682 is a wasteful number, since it uses less digits than its factorization.

866682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 635 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 866682 is about 930.9575715359. The cubic root of 866682 is about 95.3425124692.

The spelling of 866682 in words is "eight hundred sixty-six thousand, six hundred eighty-two".