3241891 has 4 divisors (see below), whose sum is σ = 3259984. Its totient is φ = 3223800.

The previous prime is 3241879. The next prime is 3241921. The reversal of 3241891 is 1981423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1981423 = 1301 ⋅1523.

It is a cyclic number.

It is not a de Polignac number, because 3241891 - 2⁵ = 3241859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3241801) 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 in 3 ways as a sum of consecutive naturals, for example, 8775 + ... + 9136.

It is an arithmetic number, because the mean of its divisors is an integer number (814996).

Almost surely, 2^3241891 is an apocalyptic number.

3241891 is a deficient number, since it is larger than the sum of its proper divisors (18093).

3241891 is a wasteful number, since it uses less digits than its factorization.

3241891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18092.

The product of its digits is 1728, while the sum is 28.

The square root of 3241891 is about 1800.5252011566. The cubic root of 3241891 is about 148.0015065588.

The spelling of 3241891 in words is "three million, two hundred forty-one thousand, eight hundred ninety-one".