82919113 has 4 divisors (see below), whose sum is σ = 83524500. Its totient is φ = 82313728.

The previous prime is 82919101. The next prime is 82919129. The reversal of 82919113 is 31191928.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68112009 + 14807104 = 8253^2 + 3848^2 .

It is a cyclic number.

It is not a de Polignac number, because 82919113 - 2⁹ = 82918601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82919153) 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, 302488 + ... + 302761.

It is an arithmetic number, because the mean of its divisors is an integer number (20881125).

Almost surely, 2^82919113 is an apocalyptic number.

It is an amenable number.

82919113 is a deficient number, since it is larger than the sum of its proper divisors (605387).

82919113 is a wasteful number, since it uses less digits than its factorization.

82919113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605386.

The product of its digits is 3888, while the sum is 34.

The square root of 82919113 is about 9105.9932462088. The cubic root of 82919113 is about 436.0653203624.

The spelling of 82919113 in words is "eighty-two million, nine hundred nineteen thousand, one hundred thirteen".