534532421 has 2 divisors, whose sum is σ = 534532422. Its totient is φ = 534532420.

The previous prime is 534532399. The next prime is 534532429. The reversal of 534532421 is 124235435.

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., 402604225 + 131928196 = 20065^2 + 11486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-534532421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534532429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267266210 + 267266211.

It is an arithmetic number, because the mean of its divisors is an integer number (267266211).

Almost surely, 2^534532421 is an apocalyptic number.

It is an amenable number.

534532421 is a deficient number, since it is larger than the sum of its proper divisors (1).

534532421 is an equidigital number, since it uses as much as digits as its factorization.

534532421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 29.

The square root of 534532421 is about 23119.9572015175. The cubic root of 534532421 is about 811.5675689560.

Adding to 534532421 its reverse (124235435), we get a palindrome (658767856).

The spelling of 534532421 in words is "five hundred thirty-four million, five hundred thirty-two thousand, four hundred twenty-one".