3408665 has 12 divisors (see below), whose sum is σ = 4424364. Its totient is φ = 2506176.

The previous prime is 3408661. The next prime is 3408679. The reversal of 3408665 is 5668043.

It can be written as a sum of positive squares in 6 ways, for example, as 215296 + 3193369 = 464^2 + 1787^2 .

It is not a de Polignac number, because 3408665 - 2² = 3408661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3408661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14771 + ... + 14999.

It is an arithmetic number, because the mean of its divisors is an integer number (368697).

Almost surely, 2^3408665 is an apocalyptic number.

It is an amenable number.

3408665 is a deficient number, since it is larger than the sum of its proper divisors (1015699).

3408665 is an equidigital number, since it uses as much as digits as its factorization.

3408665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3408665 is about 1846.2570243604. The cubic root of 3408665 is about 150.4970915874.

The spelling of 3408665 in words is "three million, four hundred eight thousand, six hundred sixty-five".