298889993 has 8 divisors (see below), whose sum is σ = 301599936. Its totient is φ = 296186800.

The previous prime is 298889989. The next prime is 298890001. The reversal of 298889993 is 399988892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 298889993 - 2² = 298889989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298889923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133955 + ... + 136167.

It is an arithmetic number, because the mean of its divisors is an integer number (37699992).

Almost surely, 2^298889993 is an apocalyptic number.

It is an amenable number.

298889993 is a deficient number, since it is larger than the sum of its proper divisors (2709943).

298889993 is a wasteful number, since it uses less digits than its factorization.

298889993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375.

The product of its digits is 20155392, while the sum is 65.

The square root of 298889993 is about 17288.4352386212. The cubic root of 298889993 is about 668.6062905106.

The spelling of 298889993 in words is "two hundred ninety-eight million, eight hundred eighty-nine thousand, nine hundred ninety-three".