3405855 has 16 divisors (see below), whose sum is σ = 5566464. Its totient is φ = 1777440.

The previous prime is 3405841. The next prime is 3405881. The reversal of 3405855 is 5585043.

It is not a de Polignac number, because 3405855 - 2⁴ = 3405839 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1711 + ... + 3120.

It is an arithmetic number, because the mean of its divisors is an integer number (347904).

Almost surely, 2^3405855 is an apocalyptic number.

3405855 is a deficient number, since it is larger than the sum of its proper divisors (2160609).

3405855 is a wasteful number, since it uses less digits than its factorization.

3405855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 3405855 is about 1845.4958683237. The cubic root of 3405855 is about 150.4557251396.

The spelling of 3405855 in words is "three million, four hundred five thousand, eight hundred fifty-five".