4078543 has 4 divisors (see below), whose sum is σ = 4661200. Its totient is φ = 3495888.

The previous prime is 4078523. The next prime is 4078561. The reversal of 4078543 is 3458704.

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

It is a cyclic number.

It is not a de Polignac number, because 4078543 - 2⁵ = 4078511 is a prime.

It is a Duffinian number.

4078543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078513) 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, 291318 + ... + 291331.

It is an arithmetic number, because the mean of its divisors is an integer number (1165300).

Almost surely, 2^4078543 is an apocalyptic number.

4078543 is a deficient number, since it is larger than the sum of its proper divisors (582657).

4078543 is an equidigital number, since it uses as much as digits as its factorization.

4078543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582656.

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

The square root of 4078543 is about 2019.5402942254. The cubic root of 4078543 is about 159.7723716243.

The spelling of 4078543 in words is "four million, seventy-eight thousand, five hundred forty-three".