63912946 has 4 divisors (see below), whose sum is σ = 95869422. Its totient is φ = 31956472.

The previous prime is 63912943. The next prime is 63912967. The reversal of 63912946 is 64921936.

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., 32046921 + 31866025 = 5661^2 + 5645^2 .

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 junction number, because it is equal to n+sod(n) for n = 63912899 and 63912908.

It is not an unprimeable number, because it can be changed into a prime (63912943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15978235 + ... + 15978238.

Almost surely, 2^63912946 is an apocalyptic number.

63912946 is a deficient number, since it is larger than the sum of its proper divisors (31956476).

63912946 is a wasteful number, since it uses less digits than its factorization.

63912946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31956475.

The product of its digits is 69984, while the sum is 40.

The square root of 63912946 is about 7994.5572735455. The cubic root of 63912946 is about 399.8185552069.

The spelling of 63912946 in words is "sixty-three million, nine hundred twelve thousand, nine hundred forty-six".