4578257 has 2 divisors, whose sum is σ = 4578258. Its totient is φ = 4578256.

The previous prime is 4578241. The next prime is 4578263. The reversal of 4578257 is 7528754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3845521 + 732736 = 1961^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 4578257 - 2⁴ = 4578241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4578257.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4578227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2289128 + 2289129.

It is an arithmetic number, because the mean of its divisors is an integer number (2289129).

Almost surely, 2^4578257 is an apocalyptic number.

It is an amenable number.

4578257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4578257 is an equidigital number, since it uses as much as digits as its factorization.

4578257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 38.

The square root of 4578257 is about 2139.6861919450. The cubic root of 4578257 is about 166.0479007263.

The spelling of 4578257 in words is "four million, five hundred seventy-eight thousand, two hundred fifty-seven".