3216996 has 30 divisors (see below), whose sum is σ = 8410710. Its totient is φ = 1072224.

The previous prime is 3216991. The next prime is 3217001. The reversal of 3216996 is 6996123.

It is an interprime number because it is at equal distance from previous prime (3216991) and next prime (3217001).

It can be written as a sum of positive squares in only one way, i.e., 2340900 + 876096 = 1530^2 + 936^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 3216996.

It is not an unprimeable number, because it can be changed into a prime (3216991) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4641 + ... + 5288.

It is an arithmetic number, because the mean of its divisors is an integer number (280357).

Almost surely, 2^3216996 is an apocalyptic number.

3216996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3216996 is an abundant number, since it is smaller than the sum of its proper divisors (5193714).

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

3216996 is a wasteful number, since it uses less digits than its factorization.

3216996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945 (or 9934 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 3216996 is about 1793.5986173054. The cubic root of 3216996 is about 147.6216902488.

The spelling of 3216996 in words is "three million, two hundred sixteen thousand, nine hundred ninety-six".