389302939 has 8 divisors (see below), whose sum is σ = 391224960. Its totient is φ = 387386496.

The previous prime is 389302891. The next prime is 389302981. The reversal of 389302939 is 939203983.

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 389302939 - 2⁷ = 389302811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389302139) 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, 206469 + ... + 208345.

It is an arithmetic number, because the mean of its divisors is an integer number (48903120).

Almost surely, 2^389302939 is an apocalyptic number.

389302939 is a deficient number, since it is larger than the sum of its proper divisors (1922021).

389302939 is a wasteful number, since it uses less digits than its factorization.

389302939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 389302939 is about 19730.7612372154. The cubic root of 389302939 is about 730.1788133926.

The spelling of 389302939 in words is "three hundred eighty-nine million, three hundred two thousand, nine hundred thirty-nine".