284059421 has 4 divisors (see below), whose sum is σ = 284107200. Its totient is φ = 284011644.

The previous prime is 284059403. The next prime is 284059463. The reversal of 284059421 is 124950482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284059421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284059021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13451 + ... + 27368.

It is an arithmetic number, because the mean of its divisors is an integer number (71026800).

Almost surely, 2^284059421 is an apocalyptic number.

It is an amenable number.

284059421 is a deficient number, since it is larger than the sum of its proper divisors (47779).

284059421 is an equidigital number, since it uses as much as digits as its factorization.

284059421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47778.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 284059421 is about 16854.0624479678. The cubic root of 284059421 is about 657.3596849591.

The spelling of 284059421 in words is "two hundred eighty-four million, fifty-nine thousand, four hundred twenty-one".