389368933 has 8 divisors (see below), whose sum is σ = 397594008. Its totient is φ = 381222144.

The previous prime is 389368891. The next prime is 389368939. The reversal of 389368933 is 339863983.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3560769 + 385808164 = 1887^2 + 19642^2 .

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 389368933 - 2¹⁷ = 389237861 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 (389368939) 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, 9466 + ... + 29467.

It is an arithmetic number, because the mean of its divisors is an integer number (49699251).

Almost surely, 2^389368933 is an apocalyptic number.

It is an amenable number.

389368933 is a deficient number, since it is larger than the sum of its proper divisors (8225075).

389368933 is a wasteful number, since it uses less digits than its factorization.

389368933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39143.

The product of its digits is 2519424, while the sum is 52.

The square root of 389368933 is about 19732.4335295979. The cubic root of 389368933 is about 730.2200706357.

The spelling of 389368933 in words is "three hundred eighty-nine million, three hundred sixty-eight thousand, nine hundred thirty-three".