3298991 has 4 divisors (see below), whose sum is σ = 3313752. Its totient is φ = 3284232.

The previous prime is 3298979. The next prime is 3299017. The reversal of 3298991 is 1998923.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3298991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3298921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7040 + ... + 7493.

It is an arithmetic number, because the mean of its divisors is an integer number (828438).

Almost surely, 2^3298991 is an apocalyptic number.

3298991 is a deficient number, since it is larger than the sum of its proper divisors (14761).

3298991 is a wasteful number, since it uses less digits than its factorization.

3298991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14760.

The product of its digits is 34992, while the sum is 41.

The square root of 3298991 is about 1816.3124731169. The cubic root of 3298991 is about 148.8653799627.

The spelling of 3298991 in words is "three million, two hundred ninety-eight thousand, nine hundred ninety-one".