82479445 has 4 divisors (see below), whose sum is σ = 98975340. Its totient is φ = 65983552.

The previous prime is 82479379. The next prime is 82479457. The reversal of 82479445 is 54497428.

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 28633201 + 53846244 = 5351^2 + 7338^2 .

It is a cyclic number.

It is not a de Polignac number, because 82479445 - 2¹⁵ = 82446677 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8247940 + ... + 8247949.

It is an arithmetic number, because the mean of its divisors is an integer number (24743835).

Almost surely, 2^82479445 is an apocalyptic number.

It is an amenable number.

82479445 is a deficient number, since it is larger than the sum of its proper divisors (16495895).

82479445 is a wasteful number, since it uses less digits than its factorization.

82479445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16495894.

The product of its digits is 322560, while the sum is 43.

The square root of 82479445 is about 9081.8194762944. The cubic root of 82479445 is about 435.2932272304.

The spelling of 82479445 in words is "eighty-two million, four hundred seventy-nine thousand, four hundred forty-five".