3321001997 has 2 divisors, whose sum is σ = 3321001998. Its totient is φ = 3321001996.

The previous prime is 3321001991. The next prime is 3321002033. The reversal of 3321001997 is 7991001233.

3321001997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2893794436 + 427207561 = 53794^2 + 20669^2 .

It is an emirp because it is prime and its reverse (7991001233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3321001997 - 2¹⁶ = 3320936461 is a prime.

It is a super-2 number, since 2×3321001997² = 22058108528155976018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3321001991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660500998 + 1660500999.

It is an arithmetic number, because the mean of its divisors is an integer number (1660500999).

Almost surely, 2^3321001997 is an apocalyptic number.

It is an amenable number.

3321001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321001997 is an equidigital number, since it uses as much as digits as its factorization.

3321001997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 3321001997 is about 57628.1354635043. The cubic root of 3321001997 is about 1491.9572490308.

The spelling of 3321001997 in words is "three billion, three hundred twenty-one million, one thousand, nine hundred ninety-seven".