63403673 has 2 divisors, whose sum is σ = 63403674. Its totient is φ = 63403672.

The previous prime is 63403667. The next prime is 63403751. The reversal of 63403673 is 37630436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49168144 + 14235529 = 7012^2 + 3773^2 .

It is a cyclic number.

It is not a de Polignac number, because 63403673 - 2¹² = 63399577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (63403073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31701836 + 31701837.

It is an arithmetic number, because the mean of its divisors is an integer number (31701837).

Almost surely, 2^63403673 is an apocalyptic number.

It is an amenable number.

63403673 is a deficient number, since it is larger than the sum of its proper divisors (1).

63403673 is an equidigital number, since it uses as much as digits as its factorization.

63403673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 32.

The square root of 63403673 is about 7962.6423378173. The cubic root of 63403673 is about 398.7537734138.

The spelling of 63403673 in words is "sixty-three million, four hundred three thousand, six hundred seventy-three".