63616109 has 2 divisors, whose sum is σ = 63616110. Its totient is φ = 63616108.

The previous prime is 63616099. The next prime is 63616117. The reversal of 63616109 is 90161636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 334084 = 7955^2 + 578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63616109 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_3763643 and since 63616109 and 3763643 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63616139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31808054 + 31808055.

It is an arithmetic number, because the mean of its divisors is an integer number (31808055).

Almost surely, 2^63616109 is an apocalyptic number.

It is an amenable number.

63616109 is a deficient number, since it is larger than the sum of its proper divisors (1).

63616109 is an equidigital number, since it uses as much as digits as its factorization.

63616109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 63616109 is about 7975.9707246203. The cubic root of 63616109 is about 399.1986226413.

The spelling of 63616109 in words is "sixty-three million, six hundred sixteen thousand, one hundred nine".