63726706 has 8 divisors (see below), whose sum is σ = 95667120. Its totient is φ = 31837668.

The previous prime is 63726697. The next prime is 63726709. The reversal of 63726706 is 60762736.

It is a happy number.

63726706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×63726706⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (63726709) 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 3 ways as a sum of consecutive naturals, for example, 9576 + ... + 14803.

It is an arithmetic number, because the mean of its divisors is an integer number (11958390).

Almost surely, 2^63726706 is an apocalyptic number.

63726706 is a deficient number, since it is larger than the sum of its proper divisors (31940414).

63726706 is a wasteful number, since it uses less digits than its factorization.

63726706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25688.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 63726706 is about 7982.9008511944. The cubic root of 63726706 is about 399.4298251377.

The spelling of 63726706 in words is "sixty-three million, seven hundred twenty-six thousand, seven hundred six".