63631193 has 2 divisors, whose sum is σ = 63631194. Its totient is φ = 63631192.

The previous prime is 63631177. The next prime is 63631207. The reversal of 63631193 is 39113636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58491904 + 5139289 = 7648^2 + 2267^2 .

It is a cyclic number.

It is not a de Polignac number, because 63631193 - 2⁴ = 63631177 is a prime.

It is not a weakly prime, because it can be changed into another prime (63631163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31815596 + 31815597.

It is an arithmetic number, because the mean of its divisors is an integer number (31815597).

Almost surely, 2^63631193 is an apocalyptic number.

It is an amenable number.

63631193 is a deficient number, since it is larger than the sum of its proper divisors (1).

63631193 is an equidigital number, since it uses as much as digits as its factorization.

63631193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 32.

The square root of 63631193 is about 7976.9162588058. The cubic root of 63631193 is about 399.2301714438.

The spelling of 63631193 in words is "sixty-three million, six hundred thirty-one thousand, one hundred ninety-three".