82755409 has 9 divisors (see below), whose sum is σ = 91072681. Its totient is φ = 75141220.

The previous prime is 82755397. The next prime is 82755443. The reversal of 82755409 is 90455728.

The square root of 82755409 is 9097.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 82755409 - 2¹¹ = 82753361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82755479) 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 8 ways as a sum of consecutive naturals, for example, 99654 + ... + 100480.

Almost surely, 2^82755409 is an apocalyptic number.

82755409 is the 9097-th square number.

82755409 is the 4549-th centered octagonal number.

It is an amenable number.

82755409 is a deficient number, since it is larger than the sum of its proper divisors (8317272).

82755409 is an frugal number, since it uses more digits than its factorization.

82755409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 838 counting only the distinct ones).

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

The cubic root of 82755409 is about 435.7781623350.

The spelling of 82755409 in words is "eighty-two million, seven hundred fifty-five thousand, four hundred nine".