63406463 has 2 divisors, whose sum is σ = 63406464. Its totient is φ = 63406462.

The previous prime is 63406457. The next prime is 63406471. The reversal of 63406463 is 36460436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63406463 - 2¹⁰ = 63405439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63402463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31703231 + 31703232.

It is an arithmetic number, because the mean of its divisors is an integer number (31703232).

Almost surely, 2^63406463 is an apocalyptic number.

63406463 is a deficient number, since it is larger than the sum of its proper divisors (1).

63406463 is an equidigital number, since it uses as much as digits as its factorization.

63406463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 63406463 is about 7962.8175289906. The cubic root of 63406463 is about 398.7596222165.

Adding to 63406463 its reverse (36460436), we get a palindrome (99866899).

The spelling of 63406463 in words is "sixty-three million, four hundred six thousand, four hundred sixty-three".