63936736 has 12 divisors (see below), whose sum is σ = 125875512. Its totient is φ = 31968352.

The previous prime is 63936731. The next prime is 63936739. The reversal of 63936736 is 63763936.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 63936692 and 63936701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63936731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998980 + ... + 999043.

It is an arithmetic number, because the mean of its divisors is an integer number (10489626).

Almost surely, 2^63936736 is an apocalyptic number.

It is an amenable number.

63936736 is a deficient number, since it is larger than the sum of its proper divisors (61938776).

63936736 is a wasteful number, since it uses less digits than its factorization.

63936736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998033 (or 1998025 counting only the distinct ones).

The product of its digits is 367416, while the sum is 43.

The square root of 63936736 is about 7996.0450223845. The cubic root of 63936736 is about 399.8681565480.

The spelling of 63936736 in words is "sixty-three million, nine hundred thirty-six thousand, seven hundred thirty-six".