20662027 has 8 divisors (see below), whose sum is σ = 22256640. Its totient is φ = 19125480.

The previous prime is 20662009. The next prime is 20662039. The reversal of 20662027 is 72026602.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20662027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20661992 and 20662010.

It is not an unprimeable number, because it can be changed into a prime (20662127) 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, 13777 + ... + 15202.

It is an arithmetic number, because the mean of its divisors is an integer number (2782080).

Almost surely, 2^20662027 is an apocalyptic number.

20662027 is a deficient number, since it is larger than the sum of its proper divisors (1594613).

20662027 is a wasteful number, since it uses less digits than its factorization.

20662027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29033.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20662027 is about 4545.5502417199. The cubic root of 20662027 is about 274.4043393577.

Adding to 20662027 its reverse (72026602), we get a palindrome (92688629).

The spelling of 20662027 in words is "twenty million, six hundred sixty-two thousand, twenty-seven".