298399553 has 2 divisors, whose sum is σ = 298399554. Its totient is φ = 298399552.

The previous prime is 298399499. The next prime is 298399573. The reversal of 298399553 is 355993892.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254945089 + 43454464 = 15967^2 + 6592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298399553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 298399495 and 298399504.

It is not a weakly prime, because it can be changed into another prime (298399573) 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, 149199776 + 149199777.

It is an arithmetic number, because the mean of its divisors is an integer number (149199777).

Almost surely, 2^298399553 is an apocalyptic number.

It is an amenable number.

298399553 is a deficient number, since it is larger than the sum of its proper divisors (1).

298399553 is an equidigital number, since it uses as much as digits as its factorization.

298399553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 53.

The square root of 298399553 is about 17274.2453670197. The cubic root of 298399553 is about 668.2403913572.

The spelling of 298399553 in words is "two hundred ninety-eight million, three hundred ninety-nine thousand, five hundred fifty-three".