63306634 has 4 divisors (see below), whose sum is σ = 94959954. Its totient is φ = 31653316.

The previous prime is 63306631. The next prime is 63306643. The reversal of 63306634 is 43660336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57532225 + 5774409 = 7585^2 + 2403^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 63306596 and 63306605.

It is not an unprimeable number, because it can be changed into a prime (63306631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15826657 + ... + 15826660.

Almost surely, 2^63306634 is an apocalyptic number.

63306634 is a deficient number, since it is larger than the sum of its proper divisors (31653320).

63306634 is a wasteful number, since it uses less digits than its factorization.

63306634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31653319.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 63306634 is about 7956.5466126957. The cubic root of 63306634 is about 398.5502393332.

The spelling of 63306634 in words is "sixty-three million, three hundred six thousand, six hundred thirty-four".