3291684 has 36 divisors (see below), whose sum is σ = 8446032. Its totient is φ = 997040.

The previous prime is 3291683. The next prime is 3291689. The reversal of 3291684 is 4861923.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (3291683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319 + ... + 2585.

It is an arithmetic number, because the mean of its divisors is an integer number (234612).

Almost surely, 2^3291684 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 3291684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4223016).

3291684 is an abundant number, since it is smaller than the sum of its proper divisors (5154348).

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

3291684 is a wasteful number, since it uses less digits than its factorization.

3291684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296 (or 2283 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 3291684 is about 1814.2998649617. The cubic root of 3291684 is about 148.7553904315.

The spelling of 3291684 in words is "three million, two hundred ninety-one thousand, six hundred eighty-four".