63625693 has 2 divisors, whose sum is σ = 63625694. Its totient is φ = 63625692.

The previous prime is 63625643. The next prime is 63625697. The reversal of 63625693 is 39652636.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46758244 + 16867449 = 6838^2 + 4107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63625693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63625697) 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, 31812846 + 31812847.

It is an arithmetic number, because the mean of its divisors is an integer number (31812847).

Almost surely, 2^63625693 is an apocalyptic number.

It is an amenable number.

63625693 is a deficient number, since it is larger than the sum of its proper divisors (1).

63625693 is an equidigital number, since it uses as much as digits as its factorization.

63625693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 40.

The square root of 63625693 is about 7976.5715066061. The cubic root of 63625693 is about 399.2186685466.

The spelling of 63625693 in words is "sixty-three million, six hundred twenty-five thousand, six hundred ninety-three".