3356561 has 4 divisors (see below), whose sum is σ = 3614772. Its totient is φ = 3098352.

The previous prime is 3356557. The next prime is 3356567. The reversal of 3356561 is 1656533.

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 1547536 + 1809025 = 1244^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 3356561 - 2² = 3356557 is a prime.

It is a super-2 number, since 2×3356561² = 22533003493442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3356567) 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, 129086 + ... + 129111.

It is an arithmetic number, because the mean of its divisors is an integer number (903693).

Almost surely, 2^3356561 is an apocalyptic number.

It is an amenable number.

3356561 is a deficient number, since it is larger than the sum of its proper divisors (258211).

3356561 is a wasteful number, since it uses less digits than its factorization.

3356561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258210.

The product of its digits is 8100, while the sum is 29.

The square root of 3356561 is about 1832.0919736738. The cubic root of 3356561 is about 149.7263306338.

The spelling of 3356561 in words is "three million, three hundred fifty-six thousand, five hundred sixty-one".