3355991 has 2 divisors, whose sum is σ = 3355992. Its totient is φ = 3355990.

The previous prime is 3355949. The next prime is 3355993. The reversal of 3355991 is 1995533.

It is a strong prime.

It is an emirp because it is prime and its reverse (1995533) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3355991 - 2¹⁴ = 3339607 is a prime.

It is a super-2 number, since 2×3355991² = 22525351184162, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 3355993, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3355993) 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 as a sum of consecutive naturals, namely, 1677995 + 1677996.

It is an arithmetic number, because the mean of its divisors is an integer number (1677996).

Almost surely, 2^3355991 is an apocalyptic number.

3355991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3355991 is an equidigital number, since it uses as much as digits as its factorization.

3355991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18225, while the sum is 35.

The square root of 3355991 is about 1831.9364071932. The cubic root of 3355991 is about 149.7178548119.

The spelling of 3355991 in words is "three million, three hundred fifty-five thousand, nine hundred ninety-one".