63386736 has 80 divisors (see below), whose sum is σ = 197011200. Its totient is φ = 17155584.

The previous prime is 63386731. The next prime is 63386753. The reversal of 63386736 is 63768336.

63386736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63386731) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1420 + ... + 11348.

It is an arithmetic number, because the mean of its divisors is an integer number (2462640).

Almost surely, 2^63386736 is an apocalyptic number.

63386736 is the 4256-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63386736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98505600).

63386736 is an abundant number, since it is smaller than the sum of its proper divisors (133624464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63386736 is a wasteful number, since it uses less digits than its factorization.

63386736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9966 (or 9960 counting only the distinct ones).

The product of its digits is 326592, while the sum is 42.

The square root of 63386736 is about 7961.5787379137. The cubic root of 63386736 is about 398.7182639352.

The spelling of 63386736 in words is "sixty-three million, three hundred eighty-six thousand, seven hundred thirty-six".