3499605 has 20 divisors (see below), whose sum is σ = 6274092. Its totient is φ = 1866240.

The previous prime is 3499597. The next prime is 3499607. The reversal of 3499605 is 5069943.

3499605 is a `hidden beast` number, since 3 + 49 + 9 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 544644 + 2954961 = 738^2 + 1719^2 .

It is not a de Polignac number, because 3499605 - 2³ = 3499597 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3499605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3499607) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3916 + ... + 4725.

Almost surely, 2^3499605 is an apocalyptic number.

It is an amenable number.

3499605 is a deficient number, since it is larger than the sum of its proper divisors (2774487).

3499605 is an equidigital number, since it uses as much as digits as its factorization.

3499605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658 (or 8649 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 3499605 is about 1870.7231222177. The cubic root of 3499605 is about 151.8237366996.

The spelling of 3499605 in words is "three million, four hundred ninety-nine thousand, six hundred five".