866430 has 32 divisors (see below), whose sum is σ = 2311200. Its totient is φ = 230976.

The previous prime is 866417. The next prime is 866431. The reversal of 866430 is 34668.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 866394 and 866403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866431) by changing a digit.

866430 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 15 ways as a sum of consecutive naturals, for example, 1335 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (72225).

2⁸⁶⁶⁴³⁰ is an apocalyptic number.

866430 is an abundant number, since it is smaller than the sum of its proper divisors (1444770).

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

866430 is a wasteful number, since it uses less digits than its factorization.

866430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225 (or 3219 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 866430 is about 930.8222171822. The cubic root of 866430 is about 95.3332708472. Note that the first 3 decimals are identical.

It can be divided in two parts, 866 and 430, that added together give a 4-th power (1296 = 6⁴).

The spelling of 866430 in words is "eight hundred sixty-six thousand, four hundred thirty".