63945347 has 8 divisors (see below), whose sum is σ = 67795056. Its totient is φ = 60105472.

The previous prime is 63945341. The next prime is 63945367. The reversal of 63945347 is 74354936.

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

It is not a de Polignac number, because 63945347 - 2⁴ = 63945331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63945341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14228 + ... + 18174.

It is an arithmetic number, because the mean of its divisors is an integer number (8474382).

Almost surely, 2^63945347 is an apocalyptic number.

63945347 is a deficient number, since it is larger than the sum of its proper divisors (3849709).

63945347 is a wasteful number, since it uses less digits than its factorization.

63945347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917.

The product of its digits is 272160, while the sum is 41.

The square root of 63945347 is about 7996.5834579525. The cubic root of 63945347 is about 399.8861071575.

The spelling of 63945347 in words is "sixty-three million, nine hundred forty-five thousand, three hundred forty-seven".