82279687 has 8 divisors (see below), whose sum is σ = 95322656. Its totient is φ = 69558912.

The previous prime is 82279663. The next prime is 82279693. The reversal of 82279687 is 78697228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82279687 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 82279687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82279607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79998 + ... + 81019.

It is an arithmetic number, because the mean of its divisors is an integer number (11915332).

Almost surely, 2^82279687 is an apocalyptic number.

82279687 is a deficient number, since it is larger than the sum of its proper divisors (13042969).

82279687 is a wasteful number, since it uses less digits than its factorization.

82279687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161097.

The product of its digits is 677376, while the sum is 49.

The square root of 82279687 is about 9070.8151232400. The cubic root of 82279687 is about 434.9415291119.

The spelling of 82279687 in words is "eighty-two million, two hundred seventy-nine thousand, six hundred eighty-seven".