3021213 has 24 divisors (see below), whose sum is σ = 4479840. Its totient is φ = 1809600.

The previous prime is 3021173. The next prime is 3021241. The reversal of 3021213 is 3121203.

3021213 = 7² + 8² + ... + 208².

It is a happy number.

It is not a de Polignac number, because 3021213 - 2⁸ = 3020957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29863 + ... + 29963.

It is an arithmetic number, because the mean of its divisors is an integer number (186660).

Almost surely, 2^3021213 is an apocalyptic number.

It is an amenable number.

3021213 is a deficient number, since it is larger than the sum of its proper divisors (1458627).

3021213 is a wasteful number, since it uses less digits than its factorization.

3021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3021213 is about 1738.1636861930. The cubic root of 3021213 is about 144.5640971528.

Adding to 3021213 its reverse (3121203), we get a palindrome (6142416).

The spelling of 3021213 in words is "three million, twenty-one thousand, two hundred thirteen".