284873949 has 16 divisors (see below), whose sum is σ = 422309440. Its totient is φ = 189792720.

The previous prime is 284873933. The next prime is 284873951. The reversal of 284873949 is 949378482.

It is not a de Polignac number, because 284873949 - 2⁴ = 284873933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284873895 and 284873904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284873969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60954 + ... + 65460.

It is an arithmetic number, because the mean of its divisors is an integer number (26394340).

Almost surely, 2^284873949 is an apocalyptic number.

It is an amenable number.

284873949 is a deficient number, since it is larger than the sum of its proper divisors (137435491).

284873949 is a wasteful number, since it uses less digits than its factorization.

284873949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6857 (or 6851 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 284873949 is about 16878.2092948275. The cubic root of 284873949 is about 657.9874020986.

The spelling of 284873949 in words is "two hundred eighty-four million, eight hundred seventy-three thousand, nine hundred forty-nine".