4539605 has 16 divisors (see below), whose sum is σ = 6355200. Its totient is φ = 3111696.

The previous prime is 4539593. The next prime is 4539607. The reversal of 4539605 is 5069354.

It is a happy number.

It is not a de Polignac number, because 4539605 - 2⁶ = 4539541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392 + ... + 3038.

It is an arithmetic number, because the mean of its divisors is an integer number (397200).

Almost surely, 2^4539605 is an apocalyptic number.

It is an amenable number.

4539605 is a deficient number, since it is larger than the sum of its proper divisors (1815595).

4539605 is an equidigital number, since it uses as much as digits as its factorization.

4539605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 4539605 is about 2130.6348819073. The cubic root of 4539605 is about 165.5792922406.

It can be divided in two parts, 45 and 39605, that multiplied together give a square (1782225 = 1335²).

The spelling of 4539605 in words is "four million, five hundred thirty-nine thousand, six hundred five".