20620083 has 8 divisors (see below), whose sum is σ = 29992896. Its totient is φ = 12497000.

The previous prime is 20620081. The next prime is 20620097. The reversal of 20620083 is 38002602.

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 20620083 - 2¹ = 20620081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20620081) 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, 312393 + ... + 312458.

It is an arithmetic number, because the mean of its divisors is an integer number (3749112).

Almost surely, 2^20620083 is an apocalyptic number.

20620083 is a deficient number, since it is larger than the sum of its proper divisors (9372813).

20620083 is a wasteful number, since it uses less digits than its factorization.

20620083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624865.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20620083 is about 4540.9341549950. The cubic root of 20620083 is about 274.2185329249.

Adding to 20620083 its reverse (38002602), we get a palindrome (58622685).

The spelling of 20620083 in words is "twenty million, six hundred twenty thousand, eighty-three".