543742417 has 4 divisors (see below), whose sum is σ = 558438196. Its totient is φ = 529046640.

The previous prime is 543742403. The next prime is 543742421. The reversal of 543742417 is 714247345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 199120321 + 344622096 = 14111^2 + 18564^2 .

It is a cyclic number.

It is not a de Polignac number, because 543742417 - 2²³ = 535353809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 14695741 = 543742417 / (5 + 4 + 3 + 7 + 4 + 2 + 4 + 1 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543742427) 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 3 ways as a sum of consecutive naturals, for example, 7347834 + ... + 7347907.

It is an arithmetic number, because the mean of its divisors is an integer number (139609549).

Almost surely, 2^543742417 is an apocalyptic number.

It is an amenable number.

543742417 is a deficient number, since it is larger than the sum of its proper divisors (14695779).

543742417 is a wasteful number, since it uses less digits than its factorization.

543742417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14695778.

The product of its digits is 94080, while the sum is 37.

The square root of 543742417 is about 23318.2850355681. The cubic root of 543742417 is about 816.2021562965.

The spelling of 543742417 in words is "five hundred forty-three million, seven hundred forty-two thousand, four hundred seventeen".