63437641 has 2 divisors, whose sum is σ = 63437642. Its totient is φ = 63437640.

The previous prime is 63437617. The next prime is 63437669. The reversal of 63437641 is 14673436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40195600 + 23242041 = 6340^2 + 4821^2 .

It is a cyclic number.

It is not a de Polignac number, because 63437641 - 2¹⁷ = 63306569 is a prime.

It is a super-3 number, since 3×63437641³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63437597 and 63437606.

It is not a weakly prime, because it can be changed into another prime (63437681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31718820 + 31718821.

It is an arithmetic number, because the mean of its divisors is an integer number (31718821).

Almost surely, 2^63437641 is an apocalyptic number.

It is an amenable number.

63437641 is a deficient number, since it is larger than the sum of its proper divisors (1).

63437641 is an equidigital number, since it uses as much as digits as its factorization.

63437641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 34.

The square root of 63437641 is about 7964.7750125160. The cubic root of 63437641 is about 398.8249703935.

The spelling of 63437641 in words is "sixty-three million, four hundred thirty-seven thousand, six hundred forty-one".