4877221 has 2 divisors, whose sum is σ = 4877222. Its totient is φ = 4877220.

The previous prime is 4877209. The next prime is 4877227. The reversal of 4877221 is 1227784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3150625 + 1726596 = 1775^2 + 1314^2 .

It is a cyclic number.

It is not a de Polignac number, because 4877221 - 2⁹ = 4876709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4877227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2438610 + 2438611.

It is an arithmetic number, because the mean of its divisors is an integer number (2438611).

Almost surely, 2^4877221 is an apocalyptic number.

It is an amenable number.

4877221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4877221 is an equidigital number, since it uses as much as digits as its factorization.

4877221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6272, while the sum is 31.

The square root of 4877221 is about 2208.4431167680. The cubic root of 4877221 is about 169.5863182604.

The spelling of 4877221 in words is "four million, eight hundred seventy-seven thousand, two hundred twenty-one".