3328681997 has 2 divisors, whose sum is σ = 3328681998. Its totient is φ = 3328681996.

The previous prime is 3328681943. The next prime is 3328682033. The reversal of 3328681997 is 7991868233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3209675716 + 119006281 = 56654^2 + 10909^2 .

It is a cyclic number.

It is not a de Polignac number, because 3328681997 - 2¹⁶ = 3328616461 is a prime.

It is a super-2 number, since 2×3328681997² = 22160247674303816018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3328681927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664340998 + 1664340999.

It is an arithmetic number, because the mean of its divisors is an integer number (1664340999).

Almost surely, 2^3328681997 is an apocalyptic number.

It is an amenable number.

3328681997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3328681997 is an equidigital number, since it uses as much as digits as its factorization.

3328681997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 56.

The square root of 3328681997 is about 57694.7311025886. The cubic root of 3328681997 is about 1493.1064413946.

The spelling of 3328681997 in words is "three billion, three hundred twenty-eight million, six hundred eighty-one thousand, nine hundred ninety-seven".