3403665 has 24 divisors (see below), whose sum is σ = 6040320. Its totient is φ = 1772064.

The previous prime is 3403663. The next prime is 3403681. The reversal of 3403665 is 5663043.

It is not a de Polignac number, because 3403665 - 2¹ = 3403663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3403661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1056 + ... + 2814.

It is an arithmetic number, because the mean of its divisors is an integer number (251680).

Almost surely, 2^3403665 is an apocalyptic number.

It is an amenable number.

3403665 is a deficient number, since it is larger than the sum of its proper divisors (2636655).

3403665 is a wasteful number, since it uses less digits than its factorization.

3403665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 3403665 is about 1844.9024364448. The cubic root of 3403665 is about 150.4234700292.

It can be divided in two parts, 340 and 3665, that added together give a triangular number (4005 = T₈₉).

The spelling of 3403665 in words is "three million, four hundred three thousand, six hundred sixty-five".