82027509 has 8 divisors (see below), whose sum is σ = 109937472. Its totient is φ = 54401280.

The previous prime is 82027501. The next prime is 82027513. The reversal of 82027509 is 90572028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82027509 - 2³ = 82027501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82027509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82027501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70257 + ... + 71414.

It is an arithmetic number, because the mean of its divisors is an integer number (13742184).

Almost surely, 2^82027509 is an apocalyptic number.

It is an amenable number.

82027509 is a deficient number, since it is larger than the sum of its proper divisors (27909963).

82027509 is a wasteful number, since it uses less digits than its factorization.

82027509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141867.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 82027509 is about 9056.9039411931. The cubic root of 82027509 is about 434.4967253977.

The spelling of 82027509 in words is "eighty-two million, twenty-seven thousand, five hundred nine".