63444481 has 2 divisors, whose sum is σ = 63444482. Its totient is φ = 63444480.

The previous prime is 63444467. The next prime is 63444487. The reversal of 63444481 is 18444436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37271025 + 26173456 = 6105^2 + 5116^2 .

It is a cyclic number.

It is not a de Polignac number, because 63444481 - 2⁹ = 63443969 is a prime.

It is a super-2 number, since 2×63444481² = 8050404338718722, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 63444481 parts by 11264 straight cuts.

It is equal to p_3754087 and since 63444481 and 3754087 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (63444487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31722240 + 31722241.

It is an arithmetic number, because the mean of its divisors is an integer number (31722241).

Almost surely, 2^63444481 is an apocalyptic number.

It is an amenable number.

63444481 is a deficient number, since it is larger than the sum of its proper divisors (1).

63444481 is an equidigital number, since it uses as much as digits as its factorization.

63444481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 34.

The square root of 63444481 is about 7965.2043916023. The cubic root of 63444481 is about 398.8393039695.

The spelling of 63444481 in words is "sixty-three million, four hundred forty-four thousand, four hundred eighty-one".