4825921 has 2 divisors, whose sum is σ = 4825922. Its totient is φ = 4825920.

The previous prime is 4825903. The next prime is 4825937. The reversal of 4825921 is 1295284.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4145296 + 680625 = 2036^2 + 825^2 .

It is a cyclic number.

It is not a de Polignac number, because 4825921 - 2⁵ = 4825889 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4825901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2412960 + 2412961.

It is an arithmetic number, because the mean of its divisors is an integer number (2412961).

Almost surely, 2^4825921 is an apocalyptic number.

It is an amenable number.

4825921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4825921 is an equidigital number, since it uses as much as digits as its factorization.

4825921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 4825921 is about 2196.7978969400. The cubic root of 4825921 is about 168.9896355816.

The spelling of 4825921 in words is "four million, eight hundred twenty-five thousand, nine hundred twenty-one".