63746644 has 12 divisors (see below), whose sum is σ = 120138004. Its totient is φ = 29421504.

The previous prime is 63746629. The next prime is 63746659. The reversal of 63746644 is 44664736.

63746644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63746629) and next prime (63746659).

It can be written as a sum of positive squares in 2 ways, for example, as 29289744 + 34456900 = 5412^2 + 5870^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63746597 and 63746606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612897 + ... + 613000.

Almost surely, 2^63746644 is an apocalyptic number.

It is an amenable number.

63746644 is a deficient number, since it is larger than the sum of its proper divisors (56391360).

63746644 is a wasteful number, since it uses less digits than its factorization.

63746644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225914 (or 1225912 counting only the distinct ones).

The product of its digits is 290304, while the sum is 40.

The square root of 63746644 is about 7984.1495476976. The cubic root of 63746644 is about 399.4714769661.

The spelling of 63746644 in words is "sixty-three million, seven hundred forty-six thousand, six hundred forty-four".