547949 has 4 divisors (see below), whose sum is σ = 560736. Its totient is φ = 535164.

The previous prime is 547909. The next prime is 547951. The reversal of 547949 is 949745.

547949 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949745 = 5 ⋅189949.

It is a cyclic number.

It is not a de Polignac number, because 547949 - 2¹² = 543853 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6329 + ... + 6414.

It is an arithmetic number, because the mean of its divisors is an integer number (140184).

2⁵⁴⁷⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

547949 is a deficient number, since it is larger than the sum of its proper divisors (12787).

547949 is a wasteful number, since it uses less digits than its factorization.

547949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12786.

The product of its digits is 45360, while the sum is 38.

The square root of 547949 is about 740.2357732507. The cubic root of 547949 is about 81.8301560851.

The spelling of 547949 in words is "five hundred forty-seven thousand, nine hundred forty-nine".