63963706 has 4 divisors (see below), whose sum is σ = 95945562. Its totient is φ = 31981852.

The previous prime is 63963689. The next prime is 63963727. The reversal of 63963706 is 60736936.

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., 63920025 + 43681 = 7995^2 + 209^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 63963706 parts by 11310 straight cuts.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15990925 + ... + 15990928.

Almost surely, 2^63963706 is an apocalyptic number.

63963706 is a deficient number, since it is larger than the sum of its proper divisors (31981856).

63963706 is a wasteful number, since it uses less digits than its factorization.

63963706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31981855.

The product of its (nonzero) digits is 122472, while the sum is 40.

The square root of 63963706 is about 7997.7313033135. The cubic root of 63963706 is about 399.9243732024.

The spelling of 63963706 in words is "sixty-three million, nine hundred sixty-three thousand, seven hundred six".