3405871 has 8 divisors (see below), whose sum is σ = 3914144. Its totient is φ = 2903040.

The previous prime is 3405841. The next prime is 3405881. The reversal of 3405871 is 1785043.

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

It is not a de Polignac number, because 3405871 - 2⁵ = 3405839 is a prime.

It is the 1846-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405841) by changing a digit.

It is a nontrivial repunit in base 1845.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91 + ... + 2611.

It is an arithmetic number, because the mean of its divisors is an integer number (489268).

Almost surely, 2^3405871 is an apocalyptic number.

3405871 is the 1066-th hex number.

3405871 is a deficient number, since it is larger than the sum of its proper divisors (508273).

3405871 is a wasteful number, since it uses less digits than its factorization.

3405871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 3405871 is about 1845.5002031970. The cubic root of 3405871 is about 150.4559607425.

The spelling of 3405871 in words is "three million, four hundred five thousand, eight hundred seventy-one".