63534637 has 2 divisors, whose sum is σ = 63534638. Its totient is φ = 63534636.

The previous prime is 63534619. The next prime is 63534641. The reversal of 63534637 is 73643536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36348841 + 27185796 = 6029^2 + 5214^2 .

It is a cyclic number.

It is not a de Polignac number, because 63534637 - 2⁷ = 63534509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63534596 and 63534605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63534337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31767318 + 31767319.

It is an arithmetic number, because the mean of its divisors is an integer number (31767319).

Almost surely, 2^63534637 is an apocalyptic number.

It is an amenable number.

63534637 is a deficient number, since it is larger than the sum of its proper divisors (1).

63534637 is an equidigital number, since it uses as much as digits as its factorization.

63534637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 37.

The square root of 63534637 is about 7970.8617476406. The cubic root of 63534637 is about 399.0281343553.

The spelling of 63534637 in words is "sixty-three million, five hundred thirty-four thousand, six hundred thirty-seven".