63663434 has 8 divisors (see below), whose sum is σ = 95591748. Its totient is φ = 31799520.

The previous prime is 63663403. The next prime is 63663437. The reversal of 63663434 is 43436636.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61575409 + 2088025 = 7847^2 + 1445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63663394 and 63663403.

It is not an unprimeable number, because it can be changed into a prime (63663437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13547 + ... + 17630.

Almost surely, 2^63663434 is an apocalyptic number.

63663434 is a deficient number, since it is larger than the sum of its proper divisors (31928314).

63663434 is a wasteful number, since it uses less digits than its factorization.

63663434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32200.

The product of its digits is 93312, while the sum is 35.

The square root of 63663434 is about 7978.9368966047. The cubic root of 63663434 is about 399.2975880991.

The spelling of 63663434 in words is "sixty-three million, six hundred sixty-three thousand, four hundred thirty-four".