284997000 has 64 divisors (see below), whose sum is σ = 889200000. Its totient is φ = 75998400.

The previous prime is 284996969. The next prime is 284997001. The reversal of 284997000 is 799482.

It is a self number, because there is not a number n which added to its sum of digits gives 284997000.

It is not an unprimeable number, because it can be changed into a prime (284997001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44500 + ... + 50499.

It is an arithmetic number, because the mean of its divisors is an integer number (13893750).

Almost surely, 2^284997000 is an apocalyptic number.

284997000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284997000 is an abundant number, since it is smaller than the sum of its proper divisors (604203000).

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

284997000 is a wasteful number, since it uses less digits than its factorization.

284997000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95023 (or 95009 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 284997000 is about 16881.8541635686. The cubic root of 284997000 is about 658.0821274478.

The spelling of 284997000 in words is "two hundred eighty-four million, nine hundred ninety-seven thousand".