82380245 has 8 divisors (see below), whose sum is σ = 98909016. Its totient is φ = 65869056.

The previous prime is 82380223. The next prime is 82380247. The reversal of 82380245 is 54208328.

It can be written as a sum of positive squares in 4 ways, for example, as 50140561 + 32239684 = 7081^2 + 5678^2 .

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 82380245 - 2¹⁰ = 82379221 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 (82380247) 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, 10529 + ... + 16601.

It is an arithmetic number, because the mean of its divisors is an integer number (12363627).

Almost surely, 2^82380245 is an apocalyptic number.

It is an amenable number.

82380245 is a deficient number, since it is larger than the sum of its proper divisors (16528771).

82380245 is a wasteful number, since it uses less digits than its factorization.

82380245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8791.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 82380245 is about 9076.3563724658. The cubic root of 82380245 is about 435.1186446971.

The spelling of 82380245 in words is "eighty-two million, three hundred eighty thousand, two hundred forty-five".