284572013 has 4 divisors (see below), whose sum is σ = 310442208. Its totient is φ = 258701820.

The previous prime is 284571997. The next prime is 284572019. The reversal of 284572013 is 310275482.

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 not a de Polignac number, because 284572013 - 2⁴ = 284571997 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 (284572019) 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, 12935081 + ... + 12935102.

It is an arithmetic number, because the mean of its divisors is an integer number (77610552).

Almost surely, 2^284572013 is an apocalyptic number.

It is an amenable number.

284572013 is a deficient number, since it is larger than the sum of its proper divisors (25870195).

284572013 is a wasteful number, since it uses less digits than its factorization.

284572013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25870194.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 284572013 is about 16869.2623727299. The cubic root of 284572013 is about 657.7548544333.

The spelling of 284572013 in words is "two hundred eighty-four million, five hundred seventy-two thousand, thirteen".