298987667 has 16 divisors (see below), whose sum is σ = 344889600. Its totient is φ = 256335840.

The previous prime is 298987631. The next prime is 298987669. The reversal of 298987667 is 766789892.

It is a happy number.

It is not a de Polignac number, because 298987667 - 2¹² = 298983571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (298987669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44738 + ... + 50984.

It is an arithmetic number, because the mean of its divisors is an integer number (21555600).

Almost surely, 2^298987667 is an apocalyptic number.

298987667 is a deficient number, since it is larger than the sum of its proper divisors (45901933).

298987667 is a wasteful number, since it uses less digits than its factorization.

298987667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6506.

The product of its digits is 18289152, while the sum is 62.

The square root of 298987667 is about 17291.2598442103. The cubic root of 298987667 is about 668.6791136673.

The spelling of 298987667 in words is "two hundred ninety-eight million, nine hundred eighty-seven thousand, six hundred sixty-seven".