3241930921 has 2 divisors, whose sum is σ = 3241930922. Its totient is φ = 3241930920.

The previous prime is 3241930919. The next prime is 3241930931. The reversal of 3241930921 is 1290391423.

3241930921 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., 1983455296 + 1258475625 = 44536^2 + 35475^2 .

It is an emirp because it is prime and its reverse (1290391423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3241930921 - 2¹ = 3241930919 is a prime.

Together with 3241930919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3241930931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620965460 + 1620965461.

It is an arithmetic number, because the mean of its divisors is an integer number (1620965461).

Almost surely, 2^3241930921 is an apocalyptic number.

It is an amenable number.

3241930921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3241930921 is an equidigital number, since it uses as much as digits as its factorization.

3241930921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 3241930921 is about 56937.9567687496. The cubic root of 3241930921 is about 1480.0211405855.

The spelling of 3241930921 in words is "three billion, two hundred forty-one million, nine hundred thirty thousand, nine hundred twenty-one".