20648627 has 6 divisors (see below), whose sum is σ = 21223188. Its totient is φ = 20089224.

The previous prime is 20648599. The next prime is 20648647. The reversal of 20648627 is 72684602.

It is not a de Polignac number, because 20648627 - 2¹⁴ = 20632243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20648647) 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 5 ways as a sum of consecutive naturals, for example, 6173 + ... + 8910.

It is an arithmetic number, because the mean of its divisors is an integer number (3537198).

Almost surely, 2^20648627 is an apocalyptic number.

20648627 is a deficient number, since it is larger than the sum of its proper divisors (574561).

20648627 is an equidigital number, since it uses as much as digits as its factorization.

20648627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15157 (or 15120 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 20648627 is about 4544.0760336949. The cubic root of 20648627 is about 274.3450064677.

The spelling of 20648627 in words is "twenty million, six hundred forty-eight thousand, six hundred twenty-seven".