4791257 has 2 divisors, whose sum is σ = 4791258. Its totient is φ = 4791256.

The previous prime is 4791247. The next prime is 4791277. The reversal of 4791257 is 7521974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4618201 + 173056 = 2149^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 4791257 - 2¹² = 4787161 is a prime.

It is a super-2 number, since 2×4791257² = 45912287280098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4791247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2395628 + 2395629.

It is an arithmetic number, because the mean of its divisors is an integer number (2395629).

Almost surely, 2^4791257 is an apocalyptic number.

It is an amenable number.

4791257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4791257 is an equidigital number, since it uses as much as digits as its factorization.

4791257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 4791257 is about 2188.8940129664. The cubic root of 4791257 is about 168.5840523166.

The spelling of 4791257 in words is "four million, seven hundred ninety-one thousand, two hundred fifty-seven".