4539709 has 4 divisors (see below), whose sum is σ = 4544860. Its totient is φ = 4534560.

The previous prime is 4539701. The next prime is 4539737. The reversal of 4539709 is 9079354.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 324900 + 4214809 = 570^2 + 2053^2 .

It is a cyclic number.

It is not a de Polignac number, because 4539709 - 2³ = 4539701 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 (4539701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882 + ... + 3139.

It is an arithmetic number, because the mean of its divisors is an integer number (1136215).

Almost surely, 2^4539709 is an apocalyptic number.

It is an amenable number.

4539709 is a deficient number, since it is larger than the sum of its proper divisors (5151).

4539709 is a wasteful number, since it uses less digits than its factorization.

4539709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 4539709 is about 2130.6592876385. The cubic root of 4539709 is about 165.5805566762.

The spelling of 4539709 in words is "four million, five hundred thirty-nine thousand, seven hundred nine".