3457216 has 28 divisors (see below), whose sum is σ = 7841488. Its totient is φ = 1481472.

The previous prime is 3457193. The next prime is 3457217. The reversal of 3457216 is 6127543.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (3457217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3411 + ... + 4306.

Almost surely, 2^3457216 is an apocalyptic number.

It is an amenable number.

3457216 is an abundant number, since it is smaller than the sum of its proper divisors (4384272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3457216 is an equidigital number, since it uses as much as digits as its factorization.

3457216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736 (or 7726 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 3457216 is about 1859.3590293432. The cubic root of 3457216 is about 151.2082561303.

The spelling of 3457216 in words is "three million, four hundred fifty-seven thousand, two hundred sixteen".