530491963 has 4 divisors (see below), whose sum is σ = 532829160. Its totient is φ = 528154768.

The previous prime is 530491931. The next prime is 530491981. The reversal of 530491963 is 369194035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530491963 - 2⁵ = 530491931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530491463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168258 + ... + 1168711.

It is an arithmetic number, because the mean of its divisors is an integer number (133207290).

Almost surely, 2^530491963 is an apocalyptic number.

530491963 is a deficient number, since it is larger than the sum of its proper divisors (2337197).

530491963 is a wasteful number, since it uses less digits than its factorization.

530491963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337196.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 530491963 is about 23032.4111416934. The cubic root of 530491963 is about 809.5175519560.

The spelling of 530491963 in words is "five hundred thirty million, four hundred ninety-one thousand, nine hundred sixty-three".