3512216 has 16 divisors (see below), whose sum is σ = 6726240. Its totient is φ = 1718560.

The previous prime is 3512213. The next prime is 3512227. The reversal of 3512216 is 6122153.

3512216 = 461² + 462² + ... + 476².

It is a super-2 number, since 2×3512216² = 24671322461312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3512213) 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, 4295 + ... + 5046.

It is an arithmetic number, because the mean of its divisors is an integer number (420390).

Almost surely, 2^3512216 is an apocalyptic number.

It is an amenable number.

3512216 is a deficient number, since it is larger than the sum of its proper divisors (3214024).

3512216 is a wasteful number, since it uses less digits than its factorization.

3512216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9394 (or 9390 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 3512216 is about 1874.0907128525. The cubic root of 3512216 is about 152.0058861986.

Adding to 3512216 its reverse (6122153), we get a palindrome (9634369).

The spelling of 3512216 in words is "three million, five hundred twelve thousand, two hundred sixteen".