866070 has 24 divisors (see below), whose sum is σ = 2252016. Its totient is φ = 230928.

The previous prime is 866057. The next prime is 866081. The reversal of 866070 is 70668.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 866070.

It is an unprimeable number.

866070 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4722 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (93834).

2⁸⁶⁶⁰⁷⁰ is an apocalyptic number.

866070 is an abundant number, since it is smaller than the sum of its proper divisors (1385946).

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

866070 is a wasteful number, since it uses less digits than its factorization.

866070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9636 (or 9633 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 866070 is about 930.6288196698. The cubic root of 866070 is about 95.3200654212.

The spelling of 866070 in words is "eight hundred sixty-six thousand, seventy".