298890233 has 2 divisors, whose sum is σ = 298890234. Its totient is φ = 298890232.

The previous prime is 298890227. The next prime is 298890253. The reversal of 298890233 is 332098892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238486249 + 60403984 = 15443^2 + 7772^2 .

It is a cyclic number.

It is not a de Polignac number, because 298890233 - 2²⁰ = 297841657 is a prime.

It is not a weakly prime, because it can be changed into another prime (298890203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149445116 + 149445117.

It is an arithmetic number, because the mean of its divisors is an integer number (149445117).

Almost surely, 2^298890233 is an apocalyptic number.

It is an amenable number.

298890233 is a deficient number, since it is larger than the sum of its proper divisors (1).

298890233 is an equidigital number, since it uses as much as digits as its factorization.

298890233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 298890233 is about 17288.4421796760. The cubic root of 298890233 is about 668.6064694677.

The spelling of 298890233 in words is "two hundred ninety-eight million, eight hundred ninety thousand, two hundred thirty-three".