547438 has 4 divisors (see below), whose sum is σ = 821160. Its totient is φ = 273718.

The previous prime is 547411. The next prime is 547441. The reversal of 547438 is 834745.

547438 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: 834745 = 5 ⋅166949.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136858 + ... + 136861.

It is an arithmetic number, because the mean of its divisors is an integer number (205290).

2⁵⁴⁷⁴³⁸ is an apocalyptic number.

547438 is a deficient number, since it is larger than the sum of its proper divisors (273722).

547438 is a wasteful number, since it uses less digits than its factorization.

547438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273721.

The product of its digits is 13440, while the sum is 31.

The square root of 547438 is about 739.8905324438. The cubic root of 547438 is about 81.8047107638.

The spelling of 547438 in words is "five hundred forty-seven thousand, four hundred thirty-eight".