79840798 has 8 divisors (see below), whose sum is σ = 119958408. Its totient is φ = 39854664.

The previous prime is 79840781. The next prime is 79840801. The reversal of 79840798 is 89704897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31336 + ... + 33787.

It is an arithmetic number, because the mean of its divisors is an integer number (14994801).

Almost surely, 2^79840798 is an apocalyptic number.

79840798 is a deficient number, since it is larger than the sum of its proper divisors (40117610).

79840798 is a wasteful number, since it uses less digits than its factorization.

79840798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65738.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 79840798 is about 8935.3678155966. The cubic root of 79840798 is about 430.6009229371.

The spelling of 79840798 in words is "seventy-nine million, eight hundred forty thousand, seven hundred ninety-eight".