533921 has 2 divisors, whose sum is σ = 533922. Its totient is φ = 533920.

The previous prime is 533909. The next prime is 533927. The reversal of 533921 is 129335.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440896 + 93025 = 664^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 533921 - 2⁶ = 533857 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 533921.

It is not a weakly prime, because it can be changed into another prime (533927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266960 + 266961.

It is an arithmetic number, because the mean of its divisors is an integer number (266961).

2⁵³³⁹²¹ is an apocalyptic number.

It is an amenable number.

533921 is a deficient number, since it is larger than the sum of its proper divisors (1).

533921 is an equidigital number, since it uses as much as digits as its factorization.

533921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 23.

The square root of 533921 is about 730.6989804290. The cubic root of 533921 is about 81.1258015690.

The spelling of 533921 in words is "five hundred thirty-three thousand, nine hundred twenty-one".