389211311 has 8 divisors (see below), whose sum is σ = 412830720. Its totient is φ = 365672448.

The previous prime is 389211299. The next prime is 389211341. The reversal of 389211311 is 113112983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 389211311 - 2⁶ = 389211247 is a prime.

It is a super-2 number, since 2×389211311² = 302970889220677442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389211341) 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 7 ways as a sum of consecutive naturals, for example, 10031 + ... + 29648.

It is an arithmetic number, because the mean of its divisors is an integer number (51603840).

Almost surely, 2^389211311 is an apocalyptic number.

389211311 is a deficient number, since it is larger than the sum of its proper divisors (23619409).

389211311 is a wasteful number, since it uses less digits than its factorization.

389211311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40273.

The product of its digits is 1296, while the sum is 29.

The square root of 389211311 is about 19728.4391425171. The cubic root of 389211311 is about 730.1215228978.

The spelling of 389211311 in words is "three hundred eighty-nine million, two hundred eleven thousand, three hundred eleven".