474818257 has 2 divisors, whose sum is σ = 474818258. Its totient is φ = 474818256.

The previous prime is 474818243. The next prime is 474818261. The reversal of 474818257 is 752818474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427703761 + 47114496 = 20681^2 + 6864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474818257 is a prime.

It is not a weakly prime, because it can be changed into another prime (474818297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237409128 + 237409129.

It is an arithmetic number, because the mean of its divisors is an integer number (237409129).

Almost surely, 2^474818257 is an apocalyptic number.

It is an amenable number.

474818257 is a deficient number, since it is larger than the sum of its proper divisors (1).

474818257 is an equidigital number, since it uses as much as digits as its factorization.

474818257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 501760, while the sum is 46.

The square root of 474818257 is about 21790.3248484276. The cubic root of 474818257 is about 780.1458509858.

It can be divided in two parts, 4748 and 18257, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 474818257 in words is "four hundred seventy-four million, eight hundred eighteen thousand, two hundred fifty-seven".