3298681 has 2 divisors, whose sum is σ = 3298682. Its totient is φ = 3298680.

The previous prime is 3298657. The next prime is 3298699. The reversal of 3298681 is 1868923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2944656 + 354025 = 1716^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 3298681 - 2¹⁹ = 2774393 is a prime.

It is a super-2 number, since 2×3298681² = 21762592679522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3298681.

It is not a weakly prime, because it can be changed into another prime (3298621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1649340 + 1649341.

It is an arithmetic number, because the mean of its divisors is an integer number (1649341).

Almost surely, 2^3298681 is an apocalyptic number.

It is an amenable number.

3298681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3298681 is an equidigital number, since it uses as much as digits as its factorization.

3298681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 3298681 is about 1816.2271333729. The cubic root of 3298681 is about 148.8607169498.

The spelling of 3298681 in words is "three million, two hundred ninety-eight thousand, six hundred eighty-one".