545447 has 8 divisors (see below), whose sum is σ = 633216. Its totient is φ = 460152.

The previous prime is 545443. The next prime is 545449. The reversal of 545447 is 744545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545447 - 2² = 545443 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113 + ... + 1050.

It is an arithmetic number, because the mean of its divisors is an integer number (79152).

2⁵⁴⁵⁴⁴⁷ is an apocalyptic number.

545447 is a deficient number, since it is larger than the sum of its proper divisors (87769).

545447 is a wasteful number, since it uses less digits than its factorization.

545447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237.

The product of its digits is 11200, while the sum is 29.

The square root of 545447 is about 738.5438375615. The cubic root of 545447 is about 81.7054173081.

The spelling of 545447 in words is "five hundred forty-five thousand, four hundred forty-seven".