533923421 has 2 divisors, whose sum is σ = 533923422. Its totient is φ = 533923420.

The previous prime is 533923373. The next prime is 533923459. The reversal of 533923421 is 124329335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456676900 + 77246521 = 21370^2 + 8789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-533923421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (533923021) 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, 266961710 + 266961711.

It is an arithmetic number, because the mean of its divisors is an integer number (266961711).

Almost surely, 2^533923421 is an apocalyptic number.

It is an amenable number.

533923421 is a deficient number, since it is larger than the sum of its proper divisors (1).

533923421 is an equidigital number, since it uses as much as digits as its factorization.

533923421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 533923421 is about 23106.7830084588. The cubic root of 533923421 is about 811.2592418718.

The spelling of 533923421 in words is "five hundred thirty-three million, nine hundred twenty-three thousand, four hundred twenty-one".