3405605 has 8 divisors (see below), whose sum is σ = 4670592. Its totient is φ = 2335248.

The previous prime is 3405601. The next prime is 3405613. The reversal of 3405605 is 5065043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3405605 - 2² = 3405601 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 (3405601) 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, 48617 + ... + 48686.

It is an arithmetic number, because the mean of its divisors is an integer number (583824).

Almost surely, 2^3405605 is an apocalyptic number.

3405605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3405605 is a deficient number, since it is larger than the sum of its proper divisors (1264987).

3405605 is an equidigital number, since it uses as much as digits as its factorization.

3405605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97315.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 3405605 is about 1845.4281346073. The cubic root of 3405605 is about 150.4520437486.

The spelling of 3405605 in words is "three million, four hundred five thousand, six hundred five".