4604921 has 2 divisors, whose sum is σ = 4604922. Its totient is φ = 4604920.

The previous prime is 4604911. The next prime is 4604927. The reversal of 4604921 is 1294064.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 1836025 = 1664^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 4604921 - 2⁶ = 4604857 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4604927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2302460 + 2302461.

It is an arithmetic number, because the mean of its divisors is an integer number (2302461).

Almost surely, 2^4604921 is an apocalyptic number.

It is an amenable number.

4604921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4604921 is an equidigital number, since it uses as much as digits as its factorization.

4604921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 4604921 is about 2145.9079663397. The cubic root of 4604921 is about 166.3696340554.

Adding to 4604921 its reverse (1294064), we get a palindrome (5898985).

The spelling of 4604921 in words is "four million, six hundred four thousand, nine hundred twenty-one".