79876687 has 8 divisors (see below), whose sum is σ = 88037712. Its totient is φ = 71865600.

The previous prime is 79876669. The next prime is 79876697. The reversal of 79876687 is 78667897.

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 79876687 - 2¹⁵ = 79843919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79876607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36364 + ... + 38497.

It is an arithmetic number, because the mean of its divisors is an integer number (11004714).

Almost surely, 2^79876687 is an apocalyptic number.

79876687 is a deficient number, since it is larger than the sum of its proper divisors (8161025).

79876687 is a wasteful number, since it uses less digits than its factorization.

79876687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74969.

The product of its digits is 7112448, while the sum is 58.

The square root of 79876687 is about 8937.3758452915. The cubic root of 79876687 is about 430.6654326529.

The spelling of 79876687 in words is "seventy-nine million, eight hundred seventy-six thousand, six hundred eighty-seven".