535409321 has 2 divisors, whose sum is σ = 535409322. Its totient is φ = 535409320.

The previous prime is 535409317. The next prime is 535409333. The reversal of 535409321 is 123904535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 480486400 + 54922921 = 21920^2 + 7411^2 .

It is a cyclic number.

It is not a de Polignac number, because 535409321 - 2² = 535409317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (535409311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267704660 + 267704661.

It is an arithmetic number, because the mean of its divisors is an integer number (267704661).

Almost surely, 2^535409321 is an apocalyptic number.

It is an amenable number.

535409321 is a deficient number, since it is larger than the sum of its proper divisors (1).

535409321 is an equidigital number, since it uses as much as digits as its factorization.

535409321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 535409321 is about 23138.9135656798. The cubic root of 535409321 is about 812.0111184748.

The spelling of 535409321 in words is "five hundred thirty-five million, four hundred nine thousand, three hundred twenty-one".