7212612 has 48 divisors (see below), whose sum is σ = 18575424. Its totient is φ = 2160000.

The previous prime is 7212599. The next prime is 7212637. The reversal of 7212612 is 2162127.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13062 + ... + 13602.

It is an arithmetic number, because the mean of its divisors is an integer number (386988).

Almost surely, 2^7212612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7212612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9287712).

7212612 is an abundant number, since it is smaller than the sum of its proper divisors (11362812).

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

7212612 is a wasteful number, since it uses less digits than its factorization.

7212612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 658 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 7212612 is about 2685.6306521933. The cubic root of 7212612 is about 193.2105588578.

Adding to 7212612 its reverse (2162127), we get a palindrome (9374739).

It can be divided in two parts, 721 and 2612, that added together give a palindrome (3333).

The spelling of 7212612 in words is "seven million, two hundred twelve thousand, six hundred twelve".