534631421 has 2 divisors, whose sum is σ = 534631422. Its totient is φ = 534631420.

The previous prime is 534631417. The next prime is 534631441. The reversal of 534631421 is 124136435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515925796 + 18705625 = 22714^2 + 4325^2 .

It is a cyclic number.

It is not a de Polignac number, because 534631421 - 2² = 534631417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534631411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267315710 + 267315711.

It is an arithmetic number, because the mean of its divisors is an integer number (267315711).

Almost surely, 2^534631421 is an apocalyptic number.

It is an amenable number.

534631421 is a deficient number, since it is larger than the sum of its proper divisors (1).

534631421 is an equidigital number, since it uses as much as digits as its factorization.

534631421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 534631421 is about 23122.0981098169. The cubic root of 534631421 is about 811.6176689602.

Adding to 534631421 its reverse (124136435), we get a palindrome (658767856).

The spelling of 534631421 in words is "five hundred thirty-four million, six hundred thirty-one thousand, four hundred twenty-one".