535784321 has 2 divisors, whose sum is σ = 535784322. Its totient is φ = 535784320.

The previous prime is 535784317. The next prime is 535784357. The reversal of 535784321 is 123487535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 527345296 + 8439025 = 22964^2 + 2905^2 .

It is a cyclic number.

It is not a de Polignac number, because 535784321 - 2² = 535784317 is a prime.

It is not a weakly prime, because it can be changed into another prime (535784371) 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 as a sum of consecutive naturals, namely, 267892160 + 267892161.

It is an arithmetic number, because the mean of its divisors is an integer number (267892161).

Almost surely, 2^535784321 is an apocalyptic number.

It is an amenable number.

535784321 is a deficient number, since it is larger than the sum of its proper divisors (1).

535784321 is an equidigital number, since it uses as much as digits as its factorization.

535784321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 535784321 is about 23147.0153799577. The cubic root of 535784321 is about 812.2006514132.

The spelling of 535784321 in words is "five hundred thirty-five million, seven hundred eighty-four thousand, three hundred twenty-one".