63723722 has 4 divisors (see below), whose sum is σ = 95585586. Its totient is φ = 31861860.

The previous prime is 63723659. The next prime is 63723727. The reversal of 63723722 is 22732736.

63723722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 61293241 + 2430481 = 7829^2 + 1559^2 .

It is not an unprimeable number, because it can be changed into a prime (63723727) 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 as a sum of consecutive naturals, namely, 15930929 + ... + 15930932.

Almost surely, 2^63723722 is an apocalyptic number.

63723722 is a deficient number, since it is larger than the sum of its proper divisors (31861864).

63723722 is a wasteful number, since it uses less digits than its factorization.

63723722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31861863.

The product of its digits is 21168, while the sum is 32.

The square root of 63723722 is about 7982.7139495287. The cubic root of 63723722 is about 399.4235906129.

The spelling of 63723722 in words is "sixty-three million, seven hundred twenty-three thousand, seven hundred twenty-two".