389481543 has 36 divisors (see below), whose sum is σ = 652001688. Its totient is φ = 222147840.

The previous prime is 389481541. The next prime is 389481559. The reversal of 389481543 is 345184983.

It is not a de Polignac number, because 389481543 - 2¹ = 389481541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389481541) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21805 + ... + 35417.

It is an arithmetic number, because the mean of its divisors is an integer number (18111158).

Almost surely, 2^389481543 is an apocalyptic number.

389481543 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

389481543 is a deficient number, since it is larger than the sum of its proper divisors (262520145).

389481543 is a wasteful number, since it uses less digits than its factorization.

389481543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13664 (or 13644 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 389481543 is about 19735.2867473467. The cubic root of 389481543 is about 730.2904598811.

The spelling of 389481543 in words is "three hundred eighty-nine million, four hundred eighty-one thousand, five hundred forty-three".