20938083 has 4 divisors (see below), whose sum is σ = 27917448. Its totient is φ = 13958720.

The previous prime is 20938069. The next prime is 20938091. The reversal of 20938083 is 38083902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20938083 - 2⁸ = 20937827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20938013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3489678 + ... + 3489683.

It is an arithmetic number, because the mean of its divisors is an integer number (6979362).

Almost surely, 2^20938083 is an apocalyptic number.

20938083 is a deficient number, since it is larger than the sum of its proper divisors (6979365).

20938083 is an equidigital number, since it uses as much as digits as its factorization.

20938083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979364.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 20938083 is about 4575.8150093726. The cubic root of 20938083 is about 275.6210010166.

The spelling of 20938083 in words is "twenty million, nine hundred thirty-eight thousand, eighty-three".