20066983 has 8 divisors (see below), whose sum is σ = 21334320. Its totient is φ = 18820800.

The previous prime is 20066947. The next prime is 20066989. The reversal of 20066983 is 38966002.

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 not a de Polignac number, because 20066983 - 2⁹ = 20066471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3310 + ... + 7147.

It is an arithmetic number, because the mean of its divisors is an integer number (2666790).

Almost surely, 2^20066983 is an apocalyptic number.

20066983 is a deficient number, since it is larger than the sum of its proper divisors (1267337).

20066983 is a wasteful number, since it uses less digits than its factorization.

20066983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10577.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 20066983 is about 4479.6186221597. The cubic root of 20066983 is about 271.7444570452.

The spelling of 20066983 in words is "twenty million, sixty-six thousand, nine hundred eighty-three".