298191789 has 12 divisors (see below), whose sum is σ = 492253216. Its totient is φ = 170395272.

The previous prime is 298191779. The next prime is 298191791. The reversal of 298191789 is 987191892.

It is not a de Polignac number, because 298191789 - 2⁷ = 298191661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298191709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2366539 + ... + 2366664.

Almost surely, 2^298191789 is an apocalyptic number.

It is an amenable number.

298191789 is a deficient number, since it is larger than the sum of its proper divisors (194061427).

298191789 is a wasteful number, since it uses less digits than its factorization.

298191789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733216 (or 4733213 counting only the distinct ones).

The product of its digits is 653184, while the sum is 54.

The square root of 298191789 is about 17268.2306273689. The cubic root of 298191789 is about 668.0852654197.

The spelling of 298191789 in words is "two hundred ninety-eight million, one hundred ninety-one thousand, seven hundred eighty-nine".