284897025 has 54 divisors (see below), whose sum is σ = 593616582. Its totient is φ = 130233600.

The previous prime is 284897009. The next prime is 284897029. The reversal of 284897025 is 520798482.

It can be written as a sum of positive squares in 3 ways, for example, as 4769856 + 280127169 = 2184^2 + 16737^2 .

It is not a de Polignac number, because 284897025 - 2⁴ = 284897009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (284897029) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1896 + ... + 23945.

Almost surely, 2^284897025 is an apocalyptic number.

284897025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284897025 is an abundant number, since it is smaller than the sum of its proper divisors (308719557).

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

284897025 is a wasteful number, since it uses less digits than its factorization.

284897025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25871 (or 25856 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 284897025 is about 16878.8928843097. The cubic root of 284897025 is about 658.0051682105.

The spelling of 284897025 in words is "two hundred eighty-four million, eight hundred ninety-seven thousand, twenty-five".