3539605 has 24 divisors (see below), whose sum is σ = 4690872. Its totient is φ = 2560896.

The previous prime is 3539603. The next prime is 3539609. The reversal of 3539605 is 5069353.

3539605 = T₁₉₅ + T₁₉₆ + ... + T₃₀₅.

It can be written as a sum of positive squares in 4 ways, for example, as 1343281 + 2196324 = 1159^2 + 1482^2 .

It is not a de Polignac number, because 3539605 - 2¹ = 3539603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3539603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66759 + ... + 66811.

It is an arithmetic number, because the mean of its divisors is an integer number (195453).

Almost surely, 2^3539605 is an apocalyptic number.

It is an amenable number.

3539605 is a deficient number, since it is larger than the sum of its proper divisors (1151267).

3539605 is a wasteful number, since it uses less digits than its factorization.

3539605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 3539605 is about 1881.3837992286. The cubic root of 3539605 is about 152.3999881740.

The spelling of 3539605 in words is "three million, five hundred thirty-nine thousand, six hundred five".