3356621 has 4 divisors (see below), whose sum is σ = 3361500. Its totient is φ = 3351744.

The previous prime is 3356593. The next prime is 3356641. The reversal of 3356621 is 1266533.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1266533 = 173 ⋅7321.

It can be written as a sum of positive squares in 2 ways, for example, as 1357225 + 1999396 = 1165^2 + 1414^2 .

It is a cyclic number.

It is not a de Polignac number, because 3356621 - 2⁶ = 3356557 is a prime.

It is a super-2 number, since 2×3356621² = 22533809075282, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3356641) 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, 1196 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (840375).

Almost surely, 2^3356621 is an apocalyptic number.

It is an amenable number.

3356621 is a deficient number, since it is larger than the sum of its proper divisors (4879).

3356621 is an equidigital number, since it uses as much as digits as its factorization.

3356621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4878.

The product of its digits is 3240, while the sum is 26.

The square root of 3356621 is about 1832.1083483244. The cubic root of 3356621 is about 149.7272227698.

The spelling of 3356621 in words is "three million, three hundred fifty-six thousand, six hundred twenty-one".