3356521 has 8 divisors (see below), whose sum is σ = 4038080. Its totient is φ = 2725488.

The previous prime is 3356513. The next prime is 3356539. The reversal of 3356521 is 1256533.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3356521 - 2³ = 3356513 is a prime.

It is a super-2 number, since 2×3356521² = 22532466446882, which contains 22 as substring.

It is a Duffinian number.

3356521 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3356581) 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 7 ways as a sum of consecutive naturals, for example, 12486 + ... + 12751.

It is an arithmetic number, because the mean of its divisors is an integer number (504760).

Almost surely, 2^3356521 is an apocalyptic number.

It is an amenable number.

3356521 is a deficient number, since it is larger than the sum of its proper divisors (681559).

3356521 is a wasteful number, since it uses less digits than its factorization.

3356521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25263.

The product of its digits is 2700, while the sum is 25.

The square root of 3356521 is about 1832.0810571588. The cubic root of 3356521 is about 149.7257358706.

The spelling of 3356521 in words is "three million, three hundred fifty-six thousand, five hundred twenty-one".