389673313 has 2 divisors, whose sum is σ = 389673314. Its totient is φ = 389673312.

The previous prime is 389673311. The next prime is 389673341. The reversal of 389673313 is 313376983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389351824 + 321489 = 19732^2 + 567^2 .

It is a cyclic number.

It is not a de Polignac number, because 389673313 - 2¹ = 389673311 is a prime.

Together with 389673311, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 389673313.

It is not a weakly prime, because it can be changed into another prime (389673311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194836656 + 194836657.

It is an arithmetic number, because the mean of its divisors is an integer number (194836657).

Almost surely, 2^389673313 is an apocalyptic number.

It is an amenable number.

389673313 is a deficient number, since it is larger than the sum of its proper divisors (1).

389673313 is an equidigital number, since it uses as much as digits as its factorization.

389673313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 43.

The square root of 389673313 is about 19740.1447056500. The cubic root of 389673313 is about 730.4102985273.

The spelling of 389673313 in words is "three hundred eighty-nine million, six hundred seventy-three thousand, three hundred thirteen".