670284 has 36 divisors (see below), whose sum is σ = 1737736. Its totient is φ = 217728.

The previous prime is 670279. The next prime is 670297. The reversal of 670284 is 482076.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is an unprimeable number.

670284 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 + ... + 1764.

2⁶⁷⁰²⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868868).

670284 is an abundant number, since it is smaller than the sum of its proper divisors (1067452).

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

670284 is a wasteful number, since it uses less digits than its factorization.

670284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 670284 is about 818.7087394184. The cubic root of 670284 is about 87.5157631465.

It can be divided in two parts, 6702 and 84, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 670284 in words is "six hundred seventy thousand, two hundred eighty-four".