20732983 has 2 divisors, whose sum is σ = 20732984. Its totient is φ = 20732982.

The previous prime is 20732947. The next prime is 20733029. The reversal of 20732983 is 38923702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20732983 - 2⁹ = 20732471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20732483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10366491 + 10366492.

It is an arithmetic number, because the mean of its divisors is an integer number (10366492).

Almost surely, 2^20732983 is an apocalyptic number.

20732983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20732983 is an equidigital number, since it uses as much as digits as its factorization.

20732983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 20732983 is about 4553.3485480468. The cubic root of 20732983 is about 274.7180934814.

The spelling of 20732983 in words is "twenty million, seven hundred thirty-two thousand, nine hundred eighty-three".