284630641 has 3 divisors (see below), whose sum is σ = 284647513. Its totient is φ = 284613770.

The previous prime is 284630627. The next prime is 284630653. The reversal of 284630641 is 146036482.

The square root of 284630641 is 16871.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 146036482 = 2 ⋅73018241.

It is not a de Polignac number, because 284630641 - 2¹⁷ = 284499569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284630597 and 284630606.

It is not an unprimeable number, because it can be changed into a prime (284630141) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8436 + ... + 25306.

Almost surely, 2^284630641 is an apocalyptic number.

284630641 is the 16871-st square number.

284630641 is the 8436-th centered octagonal number.

It is an amenable number.

284630641 is a deficient number, since it is larger than the sum of its proper divisors (16872).

284630641 is an frugal number, since it uses more digits than its factorization.

284630641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33742 (or 16871 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The cubic root of 284630641 is about 657.8000219151.

The spelling of 284630641 in words is "two hundred eighty-four million, six hundred thirty thousand, six hundred forty-one".