63745663 has 2 divisors, whose sum is σ = 63745664. Its totient is φ = 63745662.

The previous prime is 63745637. The next prime is 63745667. The reversal of 63745663 is 36654736.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63745663 - 2¹⁷ = 63614591 is a prime.

It is a super-3 number, since 3×63745663³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63745667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31872831 + 31872832.

It is an arithmetic number, because the mean of its divisors is an integer number (31872832).

Almost surely, 2^63745663 is an apocalyptic number.

63745663 is a deficient number, since it is larger than the sum of its proper divisors (1).

63745663 is an equidigital number, since it uses as much as digits as its factorization.

63745663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 40.

The square root of 63745663 is about 7984.0881132412. The cubic root of 63745663 is about 399.4694277940.

The spelling of 63745663 in words is "sixty-three million, seven hundred forty-five thousand, six hundred sixty-three".