547939 has 4 divisors (see below), whose sum is σ = 626224. Its totient is φ = 469656.

The previous prime is 547909. The next prime is 547951. The reversal of 547939 is 939745.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-547939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 547898 and 547907.

It is not an unprimeable number, because it can be changed into a prime (547909) 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, 39132 + ... + 39145.

It is an arithmetic number, because the mean of its divisors is an integer number (156556).

2⁵⁴⁷⁹³⁹ is an apocalyptic number.

547939 is a deficient number, since it is larger than the sum of its proper divisors (78285).

547939 is an equidigital number, since it uses as much as digits as its factorization.

547939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78284.

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

The square root of 547939 is about 740.2290186152. The cubic root of 547939 is about 81.8296582854.

The spelling of 547939 in words is "five hundred forty-seven thousand, nine hundred thirty-nine".