82705459 has 8 divisors (see below), whose sum is σ = 87989328. Its totient is φ = 77468160.

The previous prime is 82705451. The next prime is 82705501. The reversal of 82705459 is 95450728.

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 82705459 - 2³ = 82705451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82705451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7942 + ... + 15115.

It is an arithmetic number, because the mean of its divisors is an integer number (10998666).

Almost surely, 2^82705459 is an apocalyptic number.

82705459 is a deficient number, since it is larger than the sum of its proper divisors (5283869).

82705459 is a wasteful number, since it uses less digits than its factorization.

82705459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23285.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 82705459 is about 9094.2541750272. The cubic root of 82705459 is about 435.6904681674.

The spelling of 82705459 in words is "eighty-two million, seven hundred five thousand, four hundred fifty-nine".