543682489 has 9 divisors (see below), whose sum is σ = 632636901. Its totient is φ = 465873660.

The previous prime is 543682471. The next prime is 543682493. The reversal of 543682489 is 984286345.

The square root of 543682489 is 23317.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 543682489 - 2¹⁷ = 543551417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543682409) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 161554 + ... + 164884.

It is an arithmetic number, because the mean of its divisors is an integer number (70292989).

Almost surely, 2^543682489 is an apocalyptic number.

543682489 is the 23317-th square number.

543682489 is the 11659-th centered octagonal number.

It is an amenable number.

543682489 is a deficient number, since it is larger than the sum of its proper divisors (88954412).

543682489 is an frugal number, since it uses more digits than its factorization.

543682489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6676 (or 3338 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The cubic root of 543682489 is about 816.1721695734.

Multiplying 543682489 by its sum of digits (49), we get a square (26640441961 = 163219²).

543682489 divided by its sum of digits (49) gives a square (11095561 = 3331²).

The spelling of 543682489 in words is "five hundred forty-three million, six hundred eighty-two thousand, four hundred eighty-nine".