530600991 has 32 divisors (see below), whose sum is σ = 780595200. Its totient is φ = 319127040.

The previous prime is 530600981. The next prime is 530600999. The reversal of 530600991 is 199006035.

It is not a de Polignac number, because 530600991 - 2¹⁵ = 530568223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530600999) 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, 170790 + ... + 173868.

It is an arithmetic number, because the mean of its divisors is an integer number (24393600).

Almost surely, 2^530600991 is an apocalyptic number.

530600991 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

530600991 is a deficient number, since it is larger than the sum of its proper divisors (249994209).

530600991 is a wasteful number, since it uses less digits than its factorization.

530600991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 530600991 is about 23034.7778587075. Note that the first 3 decimals coincide. The cubic root of 530600991 is about 809.5730061633.

The spelling of 530600991 in words is "five hundred thirty million, six hundred thousand, nine hundred ninety-one".