20214663 has 8 divisors (see below), whose sum is σ = 30803328. Its totient is φ = 11551224.

The previous prime is 20214661. The next prime is 20214673. The reversal of 20214663 is 36641202.

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

It is not a de Polignac number, because 20214663 - 2¹ = 20214661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214661) 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, 481281 + ... + 481322.

It is an arithmetic number, because the mean of its divisors is an integer number (3850416).

Almost surely, 2^20214663 is an apocalyptic number.

20214663 is a deficient number, since it is larger than the sum of its proper divisors (10588665).

20214663 is an equidigital number, since it uses as much as digits as its factorization.

20214663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962613.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20214663 is about 4496.0719522712. The cubic root of 20214663 is about 272.4094494750.

Adding to 20214663 its reverse (36641202), we get a palindrome (56855865).

The spelling of 20214663 in words is "twenty million, two hundred fourteen thousand, six hundred sixty-three".