389040983 has 4 divisors (see below), whose sum is σ = 393412320. Its totient is φ = 384669648.

The previous prime is 389040973. The next prime is 389040997.

389040983 is nontrivially palindromic in base 10.

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 389040983 - 2⁸ = 389040727 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 (389040913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2185535 + ... + 2185712.

It is an arithmetic number, because the mean of its divisors is an integer number (98353080).

Almost surely, 2^389040983 is an apocalyptic number.

389040983 is a deficient number, since it is larger than the sum of its proper divisors (4371337).

389040983 is an equidigital number, since it uses as much as digits as its factorization.

389040983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371336.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 389040983 is about 19724.1218562450. The cubic root of 389040983 is about 730.0150012555.

The spelling of 389040983 in words is "three hundred eighty-nine million, forty thousand, nine hundred eighty-three".