530487321 has 32 divisors (see below), whose sum is σ = 874046208. Its totient is φ = 278691840.

The previous prime is 530487319. The next prime is 530487337. The reversal of 530487321 is 123784035.

It is not a de Polignac number, because 530487321 - 2¹ = 530487319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (530487301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66381 + ... + 73941.

It is an arithmetic number, because the mean of its divisors is an integer number (27313944).

Almost surely, 2^530487321 is an apocalyptic number.

It is an amenable number.

530487321 is a deficient number, since it is larger than the sum of its proper divisors (343558887).

530487321 is a wasteful number, since it uses less digits than its factorization.

530487321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7841.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 530487321 is about 23032.3103704340. The cubic root of 530487321 is about 809.5151907569.

The spelling of 530487321 in words is "five hundred thirty million, four hundred eighty-seven thousand, three hundred twenty-one".