543979 has 4 divisors (see below), whose sum is σ = 545584. Its totient is φ = 542376.

The previous prime is 543971. The next prime is 543997. The reversal of 543979 is 979345.

543979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979345 = 5 ⋅195869.

It is a cyclic number.

It is not a de Polignac number, because 543979 - 2³ = 543971 is a prime.

It is a d-powerful number, because it can be written as 5⁵ + 4⁶ + 9³ + 3⁷ + 7⁴ + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72 + ... + 1045.

It is an arithmetic number, because the mean of its divisors is an integer number (136396).

2⁵⁴³⁹⁷⁹ is an apocalyptic number.

543979 is a deficient number, since it is larger than the sum of its proper divisors (1605).

543979 is a wasteful number, since it uses less digits than its factorization.

543979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604.

The product of its digits is 34020, while the sum is 37.

The square root of 543979 is about 737.5493203847. The cubic root of 543979 is about 81.6320515989.

The spelling of 543979 in words is "five hundred forty-three thousand, nine hundred seventy-nine".