20063867 has 8 divisors (see below), whose sum is σ = 21388800. Its totient is φ = 18765864.

The previous prime is 20063809. The next prime is 20063899. The reversal of 20063867 is 76836002.

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

It is a cyclic number.

It is not a de Polignac number, because 20063867 - 2⁶ = 20063803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20063167) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5183 + ... + 8184.

It is an arithmetic number, because the mean of its divisors is an integer number (2673600).

Almost surely, 2^20063867 is an apocalyptic number.

20063867 is a deficient number, since it is larger than the sum of its proper divisors (1324933).

20063867 is a wasteful number, since it uses less digits than its factorization.

20063867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13465.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20063867 is about 4479.2708111924. The cubic root of 20063867 is about 271.7303908290.

Adding to 20063867 its reverse (76836002), we get a palindrome (96899869).

The spelling of 20063867 in words is "twenty million, sixty-three thousand, eight hundred sixty-seven".