4544921 has 2 divisors, whose sum is σ = 4544922. Its totient is φ = 4544920.

The previous prime is 4544887. The next prime is 4544951. The reversal of 4544921 is 1294454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3463321 + 1081600 = 1861^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 4544921 - 2¹⁰ = 4543897 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (4544951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2272460 + 2272461.

It is an arithmetic number, because the mean of its divisors is an integer number (2272461).

Almost surely, 2^4544921 is an apocalyptic number.

It is an amenable number.

4544921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4544921 is an equidigital number, since it uses as much as digits as its factorization.

4544921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 4544921 is about 2131.8820323836. The cubic root of 4544921 is about 165.6438996351.

The spelling of 4544921 in words is "four million, five hundred forty-four thousand, nine hundred twenty-one".