298644985 has 4 divisors (see below), whose sum is σ = 358373988. Its totient is φ = 238915984.

The previous prime is 298644977. The next prime is 298644989. The reversal of 298644985 is 589446892.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47485881 + 251159104 = 6891^2 + 15848^2 .

It is a cyclic number.

It is not a de Polignac number, because 298644985 - 2³ = 298644977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298644989) 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, 29864494 + ... + 29864503.

It is an arithmetic number, because the mean of its divisors is an integer number (89593497).

Almost surely, 2^298644985 is an apocalyptic number.

It is an amenable number.

298644985 is a deficient number, since it is larger than the sum of its proper divisors (59729003).

298644985 is an equidigital number, since it uses as much as digits as its factorization.

298644985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59729002.

The product of its digits is 4976640, while the sum is 55.

The square root of 298644985 is about 17281.3478930320. The cubic root of 298644985 is about 668.4235491731.

The spelling of 298644985 in words is "two hundred ninety-eight million, six hundred forty-four thousand, nine hundred eighty-five".