4078539 has 8 divisors (see below), whose sum is σ = 6042320. Its totient is φ = 2719008.

The previous prime is 4078523. The next prime is 4078561. The reversal of 4078539 is 9358704.

It is not a de Polignac number, because 4078539 - 2⁴ = 4078523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4078579) 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, 75502 + ... + 75555.

It is an arithmetic number, because the mean of its divisors is an integer number (755290).

Almost surely, 2^4078539 is an apocalyptic number.

4078539 is a deficient number, since it is larger than the sum of its proper divisors (1963781).

4078539 is a wasteful number, since it uses less digits than its factorization.

4078539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151066 (or 151060 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 4078539 is about 2019.5393039008. The cubic root of 4078539 is about 159.7723193925.

The spelling of 4078539 in words is "four million, seventy-eight thousand, five hundred thirty-nine".