799666998 has 32 divisors (see below), whose sum is σ = 1726410336. Its totient is φ = 245472768.

The previous prime is 799666981. The next prime is 799666999. The reversal of 799666998 is 899666997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799666999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21936 + ... + 45612.

It is an arithmetic number, because the mean of its divisors is an integer number (53950323).

Almost surely, 2^799666998 is an apocalyptic number.

799666998 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

799666998 is an abundant number, since it is smaller than the sum of its proper divisors (926743338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

799666998 is a wasteful number, since it uses less digits than its factorization.

799666998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24128.

The product of its digits is 79361856, while the sum is 69.

The square root of 799666998 is about 28278.3839354373. The cubic root of 799666998 is about 928.1889439829.

Subtracting 799666998 from its reverse (899666997), we obtain a palindrome (99999999).

The spelling of 799666998 in words is "seven hundred ninety-nine million, six hundred sixty-six thousand, nine hundred ninety-eight".