79842886 has 4 divisors (see below), whose sum is σ = 119764332. Its totient is φ = 39921442.

The previous prime is 79842869. The next prime is 79842899. The reversal of 79842886 is 68824897.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 19960720 + ... + 19960723.

It is an arithmetic number, because the mean of its divisors is an integer number (29941083).

Almost surely, 2^79842886 is an apocalyptic number.

79842886 is a deficient number, since it is larger than the sum of its proper divisors (39921446).

79842886 is a wasteful number, since it uses less digits than its factorization.

79842886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39921445.

The product of its digits is 1548288, while the sum is 52.

The square root of 79842886 is about 8935.4846538954. The cubic root of 79842886 is about 430.6046766023.

The spelling of 79842886 in words is "seventy-nine million, eight hundred forty-two thousand, eight hundred eighty-six".