82728655 has 16 divisors (see below), whose sum is σ = 100776960. Its totient is φ = 65189152.

The previous prime is 82728649. The next prime is 82728661. The reversal of 82728655 is 55682728.

It is an interprime number because it is at equal distance from previous prime (82728649) and next prime (82728661).

It is a cyclic number.

It is not a de Polignac number, because 82728655 - 2⁹ = 82728143 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127542 + ... + 128188.

It is an arithmetic number, because the mean of its divisors is an integer number (6298560).

Almost surely, 2^82728655 is an apocalyptic number.

82728655 is a deficient number, since it is larger than the sum of its proper divisors (18048305).

82728655 is a wasteful number, since it uses less digits than its factorization.

82728655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its digits is 268800, while the sum is 43.

The square root of 82728655 is about 9095.5293963573. The cubic root of 82728655 is about 435.7311963593.

The spelling of 82728655 in words is "eighty-two million, seven hundred twenty-eight thousand, six hundred fifty-five".