421227361 has 2 divisors, whose sum is σ = 421227362. Its totient is φ = 421227360.

The previous prime is 421227353. The next prime is 421227431. The reversal of 421227361 is 163722124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386358336 + 34869025 = 19656^2 + 5905^2 .

It is a cyclic number.

It is not a de Polignac number, because 421227361 - 2³ = 421227353 is a prime.

It is not a weakly prime, because it can be changed into another prime (421227311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210613680 + 210613681.

It is an arithmetic number, because the mean of its divisors is an integer number (210613681).

Almost surely, 2^421227361 is an apocalyptic number.

It is an amenable number.

421227361 is a deficient number, since it is larger than the sum of its proper divisors (1).

421227361 is an equidigital number, since it uses as much as digits as its factorization.

421227361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 421227361 is about 20523.8242294169. The cubic root of 421227361 is about 749.6160173693.

Adding to 421227361 its reverse (163722124), we get a palindrome (584949485).

The spelling of 421227361 in words is "four hundred twenty-one million, two hundred twenty-seven thousand, three hundred sixty-one".