3361649 has 4 divisors (see below), whose sum is σ = 3416820. Its totient is φ = 3306480.

The previous prime is 3361639. The next prime is 3361661. The reversal of 3361649 is 9461633.

It is a happy number.

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 1311025 + 2050624 = 1145^2 + 1432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3361649 is a prime.

It is a super-2 number, since 2×3361649² = 22601367998402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3361639) 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, 27494 + ... + 27615.

It is an arithmetic number, because the mean of its divisors is an integer number (854205).

Almost surely, 2^3361649 is an apocalyptic number.

It is an amenable number.

3361649 is a deficient number, since it is larger than the sum of its proper divisors (55171).

3361649 is an equidigital number, since it uses as much as digits as its factorization.

3361649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55170.

The product of its digits is 11664, while the sum is 32.

The square root of 3361649 is about 1833.4800244344. The cubic root of 3361649 is about 149.8019460200.

The spelling of 3361649 in words is "three million, three hundred sixty-one thousand, six hundred forty-nine".