63004421 has 2 divisors, whose sum is σ = 63004422. Its totient is φ = 63004420.

The previous prime is 63004367. The next prime is 63004441. The reversal of 63004421 is 12440036.

It is a happy number.

63004421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (63004441) can be obtained adding 63004421 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46104100 + 16900321 = 6790^2 + 4111^2 .

It is a cyclic number.

It is not a de Polignac number, because 63004421 - 2¹⁰ = 63003397 is a prime.

It is a Chen prime.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 63004393 and 63004402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63004441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31502210 + 31502211.

It is an arithmetic number, because the mean of its divisors is an integer number (31502211).

Almost surely, 2^63004421 is an apocalyptic number.

It is an amenable number.

63004421 is a deficient number, since it is larger than the sum of its proper divisors (1).

63004421 is an equidigital number, since it uses as much as digits as its factorization.

63004421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 63004421 is about 7937.5324251306. The cubic root of 63004421 is about 397.9150281973.

Adding to 63004421 its reverse (12440036), we get a palindrome (75444457).

The spelling of 63004421 in words is "sixty-three million, four thousand, four hundred twenty-one".