79486805 has 8 divisors (see below), whose sum is σ = 95501112. Its totient is φ = 63511488.

The previous prime is 79486793. The next prime is 79486829. The reversal of 79486805 is 50868497.

It can be written as a sum of positive squares in 4 ways, for example, as 7695076 + 71791729 = 2774^2 + 8473^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 79486805 - 2²⁰ = 78438229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79486805.

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, 5054 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (11937639).

Almost surely, 2^79486805 is an apocalyptic number.

It is an amenable number.

79486805 is a deficient number, since it is larger than the sum of its proper divisors (16014307).

79486805 is a wasteful number, since it uses less digits than its factorization.

79486805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19495.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 79486805 is about 8915.5372805008. The cubic root of 79486805 is about 429.9635898502.

The spelling of 79486805 in words is "seventy-nine million, four hundred eighty-six thousand, eight hundred five".