3399665 has 4 divisors (see below), whose sum is σ = 4079604. Its totient is φ = 2719728.

The previous prime is 3399661. The next prime is 3399667. The reversal of 3399665 is 5669933.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 817216 + 2582449 = 904^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 3399665 - 2² = 3399661 is a prime.

It is a super-2 number, since 2×3399665² = 23115444224450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3399661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339962 + ... + 339971.

It is an arithmetic number, because the mean of its divisors is an integer number (1019901).

Almost surely, 2^3399665 is an apocalyptic number.

It is an amenable number.

3399665 is a deficient number, since it is larger than the sum of its proper divisors (679939).

3399665 is an equidigital number, since it uses as much as digits as its factorization.

3399665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679938.

The product of its digits is 131220, while the sum is 41.

The square root of 3399665 is about 1843.8180495917. The cubic root of 3399665 is about 150.3645208535.

The spelling of 3399665 in words is "three million, three hundred ninety-nine thousand, six hundred sixty-five".