534753721 has 2 divisors, whose sum is σ = 534753722. Its totient is φ = 534753720.

The previous prime is 534753671. The next prime is 534753781. The reversal of 534753721 is 127357435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 531948096 + 2805625 = 23064^2 + 1675^2 .

It is a cyclic number.

It is not a de Polignac number, because 534753721 - 2¹¹ = 534751673 is a prime.

It is a super-3 number, since 3×534753721³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (534753781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267376860 + 267376861.

It is an arithmetic number, because the mean of its divisors is an integer number (267376861).

Almost surely, 2^534753721 is an apocalyptic number.

It is an amenable number.

534753721 is a deficient number, since it is larger than the sum of its proper divisors (1).

534753721 is an equidigital number, since it uses as much as digits as its factorization.

534753721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 37.

The square root of 534753721 is about 23124.7426147838. The cubic root of 534753721 is about 811.6795516387.

The spelling of 534753721 in words is "five hundred thirty-four million, seven hundred fifty-three thousand, seven hundred twenty-one".