298890239 has 4 divisors (see below), whose sum is σ = 300392400. Its totient is φ = 297388080.

The previous prime is 298890233. The next prime is 298890253. The reversal of 298890239 is 932098892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 298890239 - 2²⁴ = 282113023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298890233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750782 + ... + 751179.

It is an arithmetic number, because the mean of its divisors is an integer number (75098100).

Almost surely, 2^298890239 is an apocalyptic number.

298890239 is a deficient number, since it is larger than the sum of its proper divisors (1502161).

298890239 is a wasteful number, since it uses less digits than its factorization.

298890239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502160.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 298890239 is about 17288.4423532023. The cubic root of 298890239 is about 668.6064739416.

The spelling of 298890239 in words is "two hundred ninety-eight million, eight hundred ninety thousand, two hundred thirty-nine".