4920257 has 2 divisors, whose sum is σ = 4920258. Its totient is φ = 4920256.

The previous prime is 4920247. The next prime is 4920263. The reversal of 4920257 is 7520294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3857296 + 1062961 = 1964^2 + 1031^2 .

It is a cyclic number.

It is not a de Polignac number, because 4920257 - 2⁴ = 4920241 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁷ + 9⁷ + 2 + 0 + 2⁷ + 5⁵ + 7⁶ .

It is not a weakly prime, because it can be changed into another prime (4920217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460128 + 2460129.

It is an arithmetic number, because the mean of its divisors is an integer number (2460129).

Almost surely, 2^4920257 is an apocalyptic number.

It is an amenable number.

4920257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4920257 is an equidigital number, since it uses as much as digits as its factorization.

4920257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 4920257 is about 2218.1652327994. The cubic root of 4920257 is about 170.0836612436.

The spelling of 4920257 in words is "four million, nine hundred twenty thousand, two hundred fifty-seven".