63727722 has 56 divisors (see below), whose sum is σ = 144997380. Its totient is φ = 20995200.

The previous prime is 63727721. The next prime is 63727751. The reversal of 63727722 is 22772736.

63727722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51969681 + 11758041 = 7209^2 + 3429^2 .

It is a super-2 number, since 2×63727722² = 8122445102618568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63727721) 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 27 ways as a sum of consecutive naturals, for example, 158722 + ... + 159122.

Almost surely, 2^63727722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63727722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72498690).

63727722 is an abundant number, since it is smaller than the sum of its proper divisors (81269658).

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

63727722 is a wasteful number, since it uses less digits than its factorization.

63727722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 515 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 63727722 is about 7982.9644869560. The cubic root of 63727722 is about 399.4319478404.

The spelling of 63727722 in words is "sixty-three million, seven hundred twenty-seven thousand, seven hundred twenty-two".