389471011 has 4 divisors (see below), whose sum is σ = 402034624. Its totient is φ = 376907400.

The previous prime is 389471009. The next prime is 389471023. The reversal of 389471011 is 110174983.

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

It is a cyclic number.

It is not a de Polignac number, because 389471011 - 2¹ = 389471009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389471041) 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, 6281760 + ... + 6281821.

It is an arithmetic number, because the mean of its divisors is an integer number (100508656).

Almost surely, 2^389471011 is an apocalyptic number.

389471011 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

389471011 is a deficient number, since it is larger than the sum of its proper divisors (12563613).

389471011 is a wasteful number, since it uses less digits than its factorization.

389471011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12563612.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 389471011 is about 19735.0199138486. The cubic root of 389471011 is about 730.2838772085.

The spelling of 389471011 in words is "three hundred eighty-nine million, four hundred seventy-one thousand, eleven".