3368661 has 4 divisors (see below), whose sum is σ = 4491552. Its totient is φ = 2245772.

The previous prime is 3368657. The next prime is 3368707. The reversal of 3368661 is 1668633.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1668633 = 3 ⋅556211.

It is a cyclic number.

It is not a de Polignac number, because 3368661 - 2² = 3368657 is a prime.

It is a super-2 number, since 2×3368661² = 22695753865842, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3368641) 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 3 ways as a sum of consecutive naturals, for example, 561441 + ... + 561446.

It is an arithmetic number, because the mean of its divisors is an integer number (1122888).

Almost surely, 2^3368661 is an apocalyptic number.

It is an amenable number.

3368661 is a deficient number, since it is larger than the sum of its proper divisors (1122891).

3368661 is a wasteful number, since it uses less digits than its factorization.

3368661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122890.

The product of its digits is 15552, while the sum is 33.

The square root of 3368661 is about 1835.3912389461. The cubic root of 3368661 is about 149.9060300321.

The spelling of 3368661 in words is "three million, three hundred sixty-eight thousand, six hundred sixty-one".