389686983 has 8 divisors (see below), whose sum is σ = 593808768. Its totient is φ = 222678264.

The previous prime is 389686981. The next prime is 389686991.

389686983 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 389686983 - 2¹ = 389686981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389686981) 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, 9278241 + ... + 9278282.

It is an arithmetic number, because the mean of its divisors is an integer number (74226096).

Almost surely, 2^389686983 is an apocalyptic number.

389686983 is a deficient number, since it is larger than the sum of its proper divisors (204121785).

389686983 is a wasteful number, since it uses less digits than its factorization.

389686983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18556533.

The product of its digits is 13436928, while the sum is 60.

The square root of 389686983 is about 19740.4909513416. The cubic root of 389686983 is about 730.4188395211.

The spelling of 389686983 in words is "three hundred eighty-nine million, six hundred eighty-six thousand, nine hundred eighty-three".