63606289 has 2 divisors, whose sum is σ = 63606290. Its totient is φ = 63606288.

The previous prime is 63606269. The next prime is 63606313. The reversal of 63606289 is 98260636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34715664 + 28890625 = 5892^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 63606289 - 2¹¹ = 63604241 is a prime.

It is not a weakly prime, because it can be changed into another prime (63606209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31803144 + 31803145.

It is an arithmetic number, because the mean of its divisors is an integer number (31803145).

Almost surely, 2^63606289 is an apocalyptic number.

It is an amenable number.

63606289 is a deficient number, since it is larger than the sum of its proper divisors (1).

63606289 is an equidigital number, since it uses as much as digits as its factorization.

63606289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 63606289 is about 7975.3551018121. The cubic root of 63606289 is about 399.1780810298.

The spelling of 63606289 in words is "sixty-three million, six hundred six thousand, two hundred eighty-nine".