545647397 has 8 divisors (see below), whose sum is σ = 554223936. Its totient is φ = 537083712.

The previous prime is 545647373. The next prime is 545647411. The reversal of 545647397 is 793746545.

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

It is a cyclic number.

It is not a de Polignac number, because 545647397 - 2¹⁰ = 545646373 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 (545647307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116768 + ... + 121350.

It is an arithmetic number, because the mean of its divisors is an integer number (69277992).

Almost surely, 2^545647397 is an apocalyptic number.

It is an amenable number.

545647397 is a deficient number, since it is larger than the sum of its proper divisors (8576539).

545647397 is a wasteful number, since it uses less digits than its factorization.

545647397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427.

The product of its digits is 3175200, while the sum is 50.

The square root of 545647397 is about 23359.0966648970. The cubic root of 545647397 is about 817.1542226165.

The spelling of 545647397 in words is "five hundred forty-five million, six hundred forty-seven thousand, three hundred ninety-seven".