3447213 has 16 divisors (see below), whose sum is σ = 5730816. Its totient is φ = 1790640.

The previous prime is 3447203. The next prime is 3447221. The reversal of 3447213 is 3127443.

It is not a de Polignac number, because 3447213 - 2¹² = 3443117 is a prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3447203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7231 + ... + 7692.

It is an arithmetic number, because the mean of its divisors is an integer number (358176).

Almost surely, 2^3447213 is an apocalyptic number.

3447213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3447213 is a deficient number, since it is larger than the sum of its proper divisors (2283603).

3447213 is a wasteful number, since it uses less digits than its factorization.

3447213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14944.

The product of its digits is 2016, while the sum is 24.

The square root of 3447213 is about 1856.6671753440. The cubic root of 3447213 is about 151.0622815166.

It can be divided in two parts, 344 and 7213, that added together give a palindrome (7557).

The spelling of 3447213 in words is "three million, four hundred forty-seven thousand, two hundred thirteen".