3353683921 has 9 divisors (see below), whose sum is σ = 3901695771. Its totient is φ = 2874238752.

The previous prime is 3353683909. The next prime is 3353683933. The reversal of 3353683921 is 1293863533.

The square root of 3353683921 is 57911.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (3353683909) and next prime (3353683933).

It can be written as a sum of positive squares in only one way, i.e., 2550755025 + 802928896 = 50505^2 + 28336^2 .

It is not a de Polignac number, because 3353683921 - 2⁹ = 3353683409 is a prime.

It is a super-2 number, since 2×3353683921² = 22494391683947868482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3353683951) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 401241 + ... + 409513.

Almost surely, 2^3353683921 is an apocalyptic number.

3353683921 is the 57911-st square number.

3353683921 is the 28956-th centered octagonal number.

It is an amenable number.

3353683921 is a deficient number, since it is larger than the sum of its proper divisors (548011850).

3353683921 is an frugal number, since it uses more digits than its factorization.

3353683921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16560 (or 8280 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The cubic root of 3353683921 is about 1496.8353905637.

The spelling of 3353683921 in words is "three billion, three hundred fifty-three million, six hundred eighty-three thousand, nine hundred twenty-one".