791871998 has 16 divisors (see below), whose sum is σ = 1230920064. Its totient is φ = 381665280.

The previous prime is 791871989. The next prime is 791872001. The reversal of 791871998 is 899178197.

It is a super-2 number, since 2×791871998² = 1254122522433024008, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 8915 + ... + 40782.

It is an arithmetic number, because the mean of its divisors is an integer number (76932504).

Almost surely, 2^791871998 is an apocalyptic number.

791871998 is a deficient number, since it is larger than the sum of its proper divisors (439048066).

791871998 is a wasteful number, since it uses less digits than its factorization.

791871998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49987.

The product of its digits is 2286144, while the sum is 59.

The square root of 791871998 is about 28140.2202905379. The cubic root of 791871998 is about 925.1631552476.

The spelling of 791871998 in words is "seven hundred ninety-one million, eight hundred seventy-one thousand, nine hundred ninety-eight".