298479981 has 8 divisors (see below), whose sum is σ = 398482144. Its totient is φ = 198732240.

The previous prime is 298479971. The next prime is 298479989. The reversal of 298479981 is 189974892.

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

It is not a de Polignac number, because 298479981 - 2⁶ = 298479917 is a prime.

It is a super-2 number, since 2×298479981² = 178180598115520722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298479989) 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, 60850 + ... + 65571.

It is an arithmetic number, because the mean of its divisors is an integer number (49810268).

Almost surely, 2^298479981 is an apocalyptic number.

It is an amenable number.

298479981 is a deficient number, since it is larger than the sum of its proper divisors (100002163).

298479981 is a wasteful number, since it uses less digits than its factorization.

298479981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127211.

The product of its digits is 2612736, while the sum is 57.

The square root of 298479981 is about 17276.5731845178. The cubic root of 298479981 is about 668.3004231833.

The spelling of 298479981 in words is "two hundred ninety-eight million, four hundred seventy-nine thousand, nine hundred eighty-one".