284948939 has 8 divisors (see below), whose sum is σ = 312762432. Its totient is φ = 257453640.

The previous prime is 284948933. The next prime is 284948969. The reversal of 284948939 is 939849482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 284948939 - 2²⁰ = 283900363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284948933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77669 + ... + 81254.

It is an arithmetic number, because the mean of its divisors is an integer number (39095304).

Almost surely, 2^284948939 is an apocalyptic number.

284948939 is a deficient number, since it is larger than the sum of its proper divisors (27813493).

284948939 is a wasteful number, since it uses less digits than its factorization.

284948939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159097.

The product of its digits is 4478976, while the sum is 56.

The square root of 284948939 is about 16880.4306520894. The cubic root of 284948939 is about 658.0451330664.

The spelling of 284948939 in words is "two hundred eighty-four million, nine hundred forty-eight thousand, nine hundred thirty-nine".