6321612 has 48 divisors (see below), whose sum is σ = 16313472. Its totient is φ = 1889280.

The previous prime is 6321611. The next prime is 6321643. The reversal of 6321612 is 2161236.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6321611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10668 + ... + 11244.

It is an arithmetic number, because the mean of its divisors is an integer number (339864).

Almost surely, 2^6321612 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 6321612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8156736).

6321612 is an abundant number, since it is smaller than the sum of its proper divisors (9991860).

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

6321612 is a wasteful number, since it uses less digits than its factorization.

6321612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 6321612 is about 2514.2816071395. The cubic root of 6321612 is about 184.9024272421.

Adding to 6321612 its reverse (2161236), we get a palindrome (8482848).

The spelling of 6321612 in words is "six million, three hundred twenty-one thousand, six hundred twelve".