389545983 has 8 divisors (see below), whose sum is σ = 577105200. Its totient is φ = 259697304.

The previous prime is 389545979. The next prime is 389545993.

389545983 is a `hidden beast` number, since 3 + 8 + 9 + 545 + 98 + 3 = 666.

389545983 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 389545983 - 2² = 389545979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389545903) 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, 7213788 + ... + 7213841.

It is an arithmetic number, because the mean of its divisors is an integer number (72138150).

Almost surely, 2^389545983 is an apocalyptic number.

389545983 is a deficient number, since it is larger than the sum of its proper divisors (187559217).

389545983 is a wasteful number, since it uses less digits than its factorization.

389545983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14427638 (or 14427632 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 389545983 is about 19736.9192884807. The cubic root of 389545983 is about 730.3307333531.

The spelling of 389545983 in words is "three hundred eighty-nine million, five hundred forty-five thousand, nine hundred eighty-three".