63730305 has 48 divisors (see below), whose sum is σ = 113533056. Its totient is φ = 33062400.

The previous prime is 63730301. The next prime is 63730339. The reversal of 63730305 is 50303736.

It is not a de Polignac number, because 63730305 - 2² = 63730301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63730301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 421980 + ... + 422130.

It is an arithmetic number, because the mean of its divisors is an integer number (2365272).

Almost surely, 2^63730305 is an apocalyptic number.

It is an amenable number.

63730305 is a deficient number, since it is larger than the sum of its proper divisors (49802751).

63730305 is a wasteful number, since it uses less digits than its factorization.

63730305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

The square root of 63730305 is about 7983.1262673216. The cubic root of 63730305 is about 399.4373443343.

The spelling of 63730305 in words is "sixty-three million, seven hundred thirty thousand, three hundred five".