3265991 has 2 divisors, whose sum is σ = 3265992. Its totient is φ = 3265990.

The previous prime is 3265987. The next prime is 3265993. The reversal of 3265991 is 1995623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3265991 - 2² = 3265987 is a prime.

It is a Sophie Germain prime.

Together with 3265993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3265993) 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, 1632995 + 1632996.

It is an arithmetic number, because the mean of its divisors is an integer number (1632996).

Almost surely, 2^3265991 is an apocalyptic number.

3265991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3265991 is an equidigital number, since it uses as much as digits as its factorization.

3265991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 35.

The square root of 3265991 is about 1807.2053010104. The cubic root of 3265991 is about 148.3673459296.

The spelling of 3265991 in words is "three million, two hundred sixty-five thousand, nine hundred ninety-one".