3401665 has 16 divisors (see below), whose sum is σ = 4374720. Its totient is φ = 2531520.

The previous prime is 3401663. The next prime is 3401689. The reversal of 3401665 is 5661043.

It is not a de Polignac number, because 3401665 - 2¹ = 3401663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3401663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5502 + ... + 6088.

It is an arithmetic number, because the mean of its divisors is an integer number (273420).

Almost surely, 2^3401665 is an apocalyptic number.

It is an amenable number.

3401665 is a deficient number, since it is larger than the sum of its proper divisors (973055).

3401665 is a wasteful number, since it uses less digits than its factorization.

3401665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3401665 is about 1844.3603227135. The cubic root of 3401665 is about 150.3940012178.

The spelling of 3401665 in words is "three million, four hundred one thousand, six hundred sixty-five".