20662083 has 12 divisors (see below), whose sum is σ = 32141200. Its totient is φ = 12715056.

The previous prime is 20662079. The next prime is 20662091. The reversal of 20662083 is 38026602.

It is not a de Polignac number, because 20662083 - 2² = 20662079 is a prime.

It is a super-3 number, since 3×20662083³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20662003) 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 11 ways as a sum of consecutive naturals, for example, 88183 + ... + 88416.

Almost surely, 2^20662083 is an apocalyptic number.

20662083 is a deficient number, since it is larger than the sum of its proper divisors (11479117).

20662083 is a wasteful number, since it uses less digits than its factorization.

20662083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176618 (or 176615 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20662083 is about 4545.5564015861. The cubic root of 20662083 is about 274.4045872622.

Adding to 20662083 its reverse (38026602), we get a palindrome (58688685).

The spelling of 20662083 in words is "twenty million, six hundred sixty-two thousand, eighty-three".