530427821 has 24 divisors (see below), whose sum is σ = 668328192. Its totient is φ = 412077600.

The previous prime is 530427809. The next prime is 530427823. The reversal of 530427821 is 128724035.

It is not a de Polignac number, because 530427821 - 2¹⁴ = 530411437 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530427823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 364331 + ... + 365783.

It is an arithmetic number, because the mean of its divisors is an integer number (27847008).

Almost surely, 2^530427821 is an apocalyptic number.

It is an amenable number.

530427821 is a deficient number, since it is larger than the sum of its proper divisors (137900371).

530427821 is a wasteful number, since it uses less digits than its factorization.

530427821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1902 counting only the distinct ones).

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

The square root of 530427821 is about 23031.0186704800. The cubic root of 530427821 is about 809.4849242749.

The spelling of 530427821 in words is "five hundred thirty million, four hundred twenty-seven thousand, eight hundred twenty-one".