298782643 has 4 divisors (see below), whose sum is σ = 300761488. Its totient is φ = 296803800.

The previous prime is 298782641. The next prime is 298782689. The reversal of 298782643 is 346287892.

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 298782643 - 2¹ = 298782641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298782641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989196 + ... + 989497.

It is an arithmetic number, because the mean of its divisors is an integer number (75190372).

Almost surely, 2^298782643 is an apocalyptic number.

298782643 is a deficient number, since it is larger than the sum of its proper divisors (1978845).

298782643 is a wasteful number, since it uses less digits than its factorization.

298782643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978844.

The product of its digits is 1161216, while the sum is 49.

The square root of 298782643 is about 17285.3302832199. The cubic root of 298782643 is about 668.5262348807.

The spelling of 298782643 in words is "two hundred ninety-eight million, seven hundred eighty-two thousand, six hundred forty-three".