298484257 has 2 divisors, whose sum is σ = 298484258. Its totient is φ = 298484256.

The previous prime is 298484237. The next prime is 298484261. The reversal of 298484257 is 752484892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290327521 + 8156736 = 17039^2 + 2856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298484257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 298484257.

It is not a weakly prime, because it can be changed into another prime (298484227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149242128 + 149242129.

It is an arithmetic number, because the mean of its divisors is an integer number (149242129).

Almost surely, 2^298484257 is an apocalyptic number.

It is an amenable number.

298484257 is a deficient number, since it is larger than the sum of its proper divisors (1).

298484257 is an equidigital number, since it uses as much as digits as its factorization.

298484257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 49.

The square root of 298484257 is about 17276.6969354677. The cubic root of 298484257 is about 668.3036145073.

The spelling of 298484257 in words is "two hundred ninety-eight million, four hundred eighty-four thousand, two hundred fifty-seven".