389881653 has 16 divisors (see below), whose sum is σ = 625374720. Its totient is φ = 211063536.

The previous prime is 389881631. The next prime is 389881673. The reversal of 389881653 is 356188983.

389881653 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 389881653 - 2²² = 385687349 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 389881596 and 389881605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389881603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488175 + ... + 488972.

It is an arithmetic number, because the mean of its divisors is an integer number (39085920).

Almost surely, 2^389881653 is an apocalyptic number.

It is an amenable number.

389881653 is a deficient number, since it is larger than the sum of its proper divisors (235493067).

389881653 is a wasteful number, since it uses less digits than its factorization.

389881653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977176.

The product of its digits is 1244160, while the sum is 51.

The square root of 389881653 is about 19745.4210641354. The cubic root of 389881653 is about 730.5404473507.

The spelling of 389881653 in words is "three hundred eighty-nine million, eight hundred eighty-one thousand, six hundred fifty-three".