63945351 has 12 divisors (see below), whose sum is σ = 92448928. Its totient is φ = 42591744.

The previous prime is 63945341. The next prime is 63945367. The reversal of 63945351 is 15354936.

It is not a de Polignac number, because 63945351 - 2⁷ = 63945223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63945311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10311 + ... + 15303.

Almost surely, 2^63945351 is an apocalyptic number.

63945351 is a deficient number, since it is larger than the sum of its proper divisors (28503577).

63945351 is a wasteful number, since it uses less digits than its factorization.

63945351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422 (or 6419 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 63945351 is about 7996.5837080593. The cubic root of 63945351 is about 399.8861154955.

The spelling of 63945351 in words is "sixty-three million, nine hundred forty-five thousand, three hundred fifty-one".