82068979 has 4 divisors (see below), whose sum is σ = 86896584. Its totient is φ = 77241376.

The previous prime is 82068967. The next prime is 82069049. The reversal of 82068979 is 97986028.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82068979 - 2¹³ = 82060787 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82068929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2413777 + ... + 2413810.

It is an arithmetic number, because the mean of its divisors is an integer number (21724146).

Almost surely, 2^82068979 is an apocalyptic number.

82068979 is a deficient number, since it is larger than the sum of its proper divisors (4827605).

82068979 is a wasteful number, since it uses less digits than its factorization.

82068979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827604.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 82068979 is about 9059.1930656102. The cubic root of 82068979 is about 434.5699347546.

The spelling of 82068979 in words is "eighty-two million, sixty-eight thousand, nine hundred seventy-nine".