63953385 has 8 divisors (see below), whose sum is σ = 102325440. Its totient is φ = 34108464.

The previous prime is 63953359. The next prime is 63953387. The reversal of 63953385 is 58335936.

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

It is not a de Polignac number, because 63953385 - 2⁸ = 63953129 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63953387) 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, 2131765 + ... + 2131794.

It is an arithmetic number, because the mean of its divisors is an integer number (12790680).

Almost surely, 2^63953385 is an apocalyptic number.

It is an amenable number.

63953385 is a deficient number, since it is larger than the sum of its proper divisors (38372055).

63953385 is a wasteful number, since it uses less digits than its factorization.

63953385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263567.

The product of its digits is 291600, while the sum is 42.

The square root of 63953385 is about 7997.0860317993. The cubic root of 63953385 is about 399.9028618290.

The spelling of 63953385 in words is "sixty-three million, nine hundred fifty-three thousand, three hundred eighty-five".