63416809 has 2 divisors, whose sum is σ = 63416810. Its totient is φ = 63416808.

The previous prime is 63416797. The next prime is 63416831. The reversal of 63416809 is 90861436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33605209 + 29811600 = 5797^2 + 5460^2 .

It is a cyclic number.

It is not a de Polignac number, because 63416809 - 2⁵ = 63416777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63416849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31708404 + 31708405.

It is an arithmetic number, because the mean of its divisors is an integer number (31708405).

Almost surely, 2^63416809 is an apocalyptic number.

It is an amenable number.

63416809 is a deficient number, since it is larger than the sum of its proper divisors (1).

63416809 is an equidigital number, since it uses as much as digits as its factorization.

63416809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 63416809 is about 7963.4671469153. The cubic root of 63416809 is about 398.7813095045.

The spelling of 63416809 in words is "sixty-three million, four hundred sixteen thousand, eight hundred nine".