535344721 has 2 divisors, whose sum is σ = 535344722. Its totient is φ = 535344720.

The previous prime is 535344713. The next prime is 535344767. The reversal of 535344721 is 127443535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 535274496 + 70225 = 23136^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 535344721 - 2³ = 535344713 is a prime.

It is not a weakly prime, because it can be changed into another prime (535344781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267672360 + 267672361.

It is an arithmetic number, because the mean of its divisors is an integer number (267672361).

Almost surely, 2^535344721 is an apocalyptic number.

It is an amenable number.

535344721 is a deficient number, since it is larger than the sum of its proper divisors (1).

535344721 is an equidigital number, since it uses as much as digits as its factorization.

535344721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 34.

The square root of 535344721 is about 23137.5176066924. The cubic root of 535344721 is about 811.9784593322.

The spelling of 535344721 in words is "five hundred thirty-five million, three hundred forty-four thousand, seven hundred twenty-one".