547213939 has 4 divisors (see below), whose sum is σ = 548460880. Its totient is φ = 545967000.

The previous prime is 547213873. The next prime is 547213987. The reversal of 547213939 is 939312745.

547213939 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.

It is a cyclic number.

It is not a de Polignac number, because 547213939 - 2⁹ = 547213427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 547213895 and 547213904.

It is not an unprimeable number, because it can be changed into a prime (547213039) 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, 622812 + ... + 623689.

It is an arithmetic number, because the mean of its divisors is an integer number (137115220).

Almost surely, 2^547213939 is an apocalyptic number.

547213939 is a deficient number, since it is larger than the sum of its proper divisors (1246941).

547213939 is a wasteful number, since it uses less digits than its factorization.

547213939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246940.

The product of its digits is 204120, while the sum is 43.

The square root of 547213939 is about 23392.6043654827. The cubic root of 547213939 is about 817.9354861912.

The spelling of 547213939 in words is "five hundred forty-seven million, two hundred thirteen thousand, nine hundred thirty-nine".