3241921 has 2 divisors, whose sum is σ = 3241922. Its totient is φ = 3241920.

The previous prime is 3241879. The next prime is 3241933. The reversal of 3241921 is 1291423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3186225 + 55696 = 1785^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 3241921 - 2⁹ = 3241409 is a prime.

3241921 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3241892 and 3241901.

It is not a weakly prime, because it can be changed into another prime (3241961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620960 + 1620961.

It is an arithmetic number, because the mean of its divisors is an integer number (1620961).

Almost surely, 2^3241921 is an apocalyptic number.

It is an amenable number.

3241921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3241921 is an equidigital number, since it uses as much as digits as its factorization.

3241921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 3241921 is about 1800.5335320399. The cubic root of 3241921 is about 148.0019630857.

The spelling of 3241921 in words is "three million, two hundred forty-one thousand, nine hundred twenty-one".