866370 has 16 divisors (see below), whose sum is σ = 2079360. Its totient is φ = 231024.

The previous prime is 866353. The next prime is 866389. The reversal of 866370 is 73668.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 28879 = 866370 / (8 + 6 + 6 + 3 + 7 + 0).

It is a plaindrome in base 13.

It is an unprimeable number.

866370 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 7 ways as a sum of consecutive naturals, for example, 14410 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (129960).

2⁸⁶⁶³⁷⁰ is an apocalyptic number.

866370 is an abundant number, since it is smaller than the sum of its proper divisors (1212990).

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

866370 is a wasteful number, since it uses less digits than its factorization.

866370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28889.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 866370 is about 930.7899870540. The cubic root of 866370 is about 95.3310701969.

The spelling of 866370 in words is "eight hundred sixty-six thousand, three hundred seventy".