63215683 has 4 divisors (see below), whose sum is σ = 63241488. Its totient is φ = 63189880.

The previous prime is 63215681. The next prime is 63215687. The reversal of 63215683 is 38651236.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63215683 - 2¹ = 63215681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63215681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8791 + ... + 14272.

It is an arithmetic number, because the mean of its divisors is an integer number (15810372).

Almost surely, 2^63215683 is an apocalyptic number.

63215683 is a deficient number, since it is larger than the sum of its proper divisors (25805).

63215683 is a wasteful number, since it uses less digits than its factorization.

63215683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25804.

The product of its digits is 25920, while the sum is 34.

The square root of 63215683 is about 7950.8290762662. The cubic root of 63215683 is about 398.3592855921.

The spelling of 63215683 in words is "sixty-three million, two hundred fifteen thousand, six hundred eighty-three".