987968798 has 4 divisors (see below), whose sum is σ = 1481953200. Its totient is φ = 493984398.

The previous prime is 987968777. The next prime is 987968809. The reversal of 987968798 is 897869789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 897869789 = 769 ⋅1167581.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 246992198 + ... + 246992201.

It is an arithmetic number, because the mean of its divisors is an integer number (370488300).

Almost surely, 2^987968798 is an apocalyptic number.

987968798 is a deficient number, since it is larger than the sum of its proper divisors (493984402).

987968798 is a wasteful number, since it uses less digits than its factorization.

987968798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493984401.

The product of its digits is 109734912, while the sum is 71.

The square root of 987968798 is about 31431.9709531553. The cubic root of 987968798 is about 995.9734076490.

Subtracting from 987968798 its reverse (897869789), we obtain a palindrome (90099009).

The spelling of 987968798 in words is "nine hundred eighty-seven million, nine hundred sixty-eight thousand, seven hundred ninety-eight".