389404706069 has 4 divisors (see below), whose sum is σ = 391736470944. Its totient is φ = 387072941196.

The previous prime is 389404706027. The next prime is 389404706081. The reversal of 389404706069 is 960607404983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 389404706069 - 2¹⁶ = 389404640533 is a prime.

It is a super-2 number, since 2×389404706069² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389404706099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165882187 + ... + 1165882520.

It is an arithmetic number, because the mean of its divisors is an integer number (97934117736).

Almost surely, 2^389404706069 is an apocalyptic number.

It is an amenable number.

389404706069 is a deficient number, since it is larger than the sum of its proper divisors (2331764875).

389404706069 is a wasteful number, since it uses less digits than its factorization.

389404706069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331764874.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 389404706069 in words is "three hundred eighty-nine billion, four hundred four million, seven hundred six thousand, sixty-nine".