284970 has 64 divisors (see below), whose sum is σ = 829440. Its totient is φ = 61248.

The previous prime is 284969. The next prime is 284989. The reversal of 284970 is 79482.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 284970.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4801 + ... + 4859.

It is an arithmetic number, because the mean of its divisors is an integer number (12960).

2²⁸⁴⁹⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414720).

284970 is an abundant number, since it is smaller than the sum of its proper divisors (544470).

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

284970 is a wasteful number, since it uses less digits than its factorization.

284970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 284970 is about 533.8258142878. The cubic root of 284970 is about 65.8061345032.

The spelling of 284970 in words is "two hundred eighty-four thousand, nine hundred seventy".