284925 has 24 divisors (see below), whose sum is σ = 491040. Its totient is φ = 145600.

The previous prime is 284917. The next prime is 284927. The reversal of 284925 is 529482.

It is not a de Polignac number, because 284925 - 2³ = 284917 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 284892 and 284901.

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 284925.

It is not an unprimeable number, because it can be changed into a prime (284927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2110 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (20460).

2²⁸⁴⁹²⁵ is an apocalyptic number.

284925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284925 is a deficient number, since it is larger than the sum of its proper divisors (206115).

284925 is a wasteful number, since it uses less digits than its factorization.

284925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 168 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 284925 is about 533.7836640438. The cubic root of 284925 is about 65.8026704755.

The spelling of 284925 in words is "two hundred eighty-four thousand, nine hundred twenty-five".