389606365 has 4 divisors (see below), whose sum is σ = 467527644. Its totient is φ = 311685088.

The previous prime is 389606341. The next prime is 389606369. The reversal of 389606365 is 563606983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99960004 + 289646361 = 9998^2 + 17019^2 .

It is a cyclic number.

It is not a de Polignac number, because 389606365 - 2⁷ = 389606237 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 (389606369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38960632 + ... + 38960641.

It is an arithmetic number, because the mean of its divisors is an integer number (116881911).

Almost surely, 2^389606365 is an apocalyptic number.

It is an amenable number.

389606365 is a deficient number, since it is larger than the sum of its proper divisors (77921279).

389606365 is an equidigital number, since it uses as much as digits as its factorization.

389606365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77921278.

The product of its (nonzero) digits is 699840, while the sum is 46.

The square root of 389606365 is about 19738.4489005595. The cubic root of 389606365 is about 730.3684666409.

The spelling of 389606365 in words is "three hundred eighty-nine million, six hundred six thousand, three hundred sixty-five".