63345747 has 4 divisors (see below), whose sum is σ = 84461000. Its totient is φ = 42230496.

The previous prime is 63345743. The next prime is 63345761. The reversal of 63345747 is 74754336.

63345747 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 is not a de Polignac number, because 63345747 - 2² = 63345743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63345743) 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, 10557622 + ... + 10557627.

It is an arithmetic number, because the mean of its divisors is an integer number (21115250).

Almost surely, 2^63345747 is an apocalyptic number.

63345747 is a deficient number, since it is larger than the sum of its proper divisors (21115253).

63345747 is a wasteful number, since it uses less digits than its factorization.

63345747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21115252.

The product of its digits is 211680, while the sum is 39.

The square root of 63345747 is about 7959.0041462484. The cubic root of 63345747 is about 398.6323017504.

The spelling of 63345747 in words is "sixty-three million, three hundred forty-five thousand, seven hundred forty-seven".