63218995 has 16 divisors (see below), whose sum is σ = 88547328. Its totient is φ = 42426720.

The previous prime is 63218963. The next prime is 63219001. The reversal of 63218995 is 59981236.

It is a happy number.

63218995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63218995 - 2⁵ = 63218963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17571 + ... + 20860.

It is an arithmetic number, because the mean of its divisors is an integer number (5534208).

Almost surely, 2^63218995 is an apocalyptic number.

63218995 is a deficient number, since it is larger than the sum of its proper divisors (25328333).

63218995 is a wasteful number, since it uses less digits than its factorization.

63218995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38490.

The product of its digits is 116640, while the sum is 43.

The square root of 63218995 is about 7951.0373537042. The cubic root of 63218995 is about 398.3662424254.

The spelling of 63218995 in words is "sixty-three million, two hundred eighteen thousand, nine hundred ninety-five".