298876989 has 4 divisors (see below), whose sum is σ = 398502656. Its totient is φ = 199251324.

The previous prime is 298876979. The next prime is 298877039. The reversal of 298876989 is 989678892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 298876989 - 2⁸ = 298876733 is a prime.

It is a super-2 number, since 2×298876989² = 178654909107412242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298876979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49812829 + ... + 49812834.

It is an arithmetic number, because the mean of its divisors is an integer number (99625664).

Almost surely, 2^298876989 is an apocalyptic number.

It is an amenable number.

298876989 is a deficient number, since it is larger than the sum of its proper divisors (99625667).

298876989 is an equidigital number, since it uses as much as digits as its factorization.

298876989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99625666.

The product of its digits is 31352832, while the sum is 66.

The square root of 298876989 is about 17288.0591449706. The cubic root of 298876989 is about 668.5965938747.

The spelling of 298876989 in words is "two hundred ninety-eight million, eight hundred seventy-six thousand, nine hundred eighty-nine".