3521669 has 8 divisors (see below), whose sum is σ = 3925440. Its totient is φ = 3139776.

The previous prime is 3521659. The next prime is 3521677. The reversal of 3521669 is 9661253.

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 3521669 - 2⁴ = 3521653 is a prime.

It is a super-2 number, since 2×3521669² = 24804305091122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5129 + ... + 5774.

It is an arithmetic number, because the mean of its divisors is an integer number (490680).

Almost surely, 2^3521669 is an apocalyptic number.

It is an amenable number.

3521669 is a deficient number, since it is larger than the sum of its proper divisors (403771).

3521669 is a wasteful number, since it uses less digits than its factorization.

3521669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10939.

The product of its digits is 9720, while the sum is 32.

The square root of 3521669 is about 1876.6110412123. The cubic root of 3521669 is about 152.1421367818.

The spelling of 3521669 in words is "three million, five hundred twenty-one thousand, six hundred sixty-nine".