298770091 has 2 divisors, whose sum is σ = 298770092. Its totient is φ = 298770090.

The previous prime is 298770077. The next prime is 298770097. The reversal of 298770091 is 190077892.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 298770091 - 2⁷ = 298769963 is a prime.

It is a super-2 number, since 2×298770091² = 178527134552296562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (298770097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149385045 + 149385046.

It is an arithmetic number, because the mean of its divisors is an integer number (149385046).

Almost surely, 2^298770091 is an apocalyptic number.

298770091 is a deficient number, since it is larger than the sum of its proper divisors (1).

298770091 is an equidigital number, since it uses as much as digits as its factorization.

298770091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 298770091 is about 17284.9671969605. The cubic root of 298770091 is about 668.5168730487.

The spelling of 298770091 in words is "two hundred ninety-eight million, seven hundred seventy thousand, ninety-one".