3216612 has 48 divisors (see below), whose sum is σ = 8668800. Its totient is φ = 909312.

The previous prime is 3216611. The next prime is 3216613. The reversal of 3216612 is 2166123.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3216611) and next prime (3216613).

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is not an unprimeable number, because it can be changed into a prime (3216611) 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, 12388 + ... + 12644.

It is an arithmetic number, because the mean of its divisors is an integer number (180600).

Almost surely, 2^3216612 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 3216612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4334400).

3216612 is an abundant number, since it is smaller than the sum of its proper divisors (5452188).

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

3216612 is a wasteful number, since it uses less digits than its factorization.

3216612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 418 counting only the distinct ones).

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

The square root of 3216612 is about 1793.4915667491. The cubic root of 3216612 is about 147.6158163440.

It can be divided in two parts, 3216 and 612, that added together give a triangular number (3828 = T₈₇).

The spelling of 3216612 in words is "three million, two hundred sixteen thousand, six hundred twelve".