82711315 has 4 divisors (see below), whose sum is σ = 99253584. Its totient is φ = 66169048.

The previous prime is 82711261. The next prime is 82711319. The reversal of 82711315 is 51311728.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82711315 - 2¹³ = 82703123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82711319) by changing a digit.

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, 8271127 + ... + 8271136.

It is an arithmetic number, because the mean of its divisors is an integer number (24813396).

Almost surely, 2^82711315 is an apocalyptic number.

82711315 is a deficient number, since it is larger than the sum of its proper divisors (16542269).

82711315 is a wasteful number, since it uses less digits than its factorization.

82711315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16542268.

The product of its digits is 1680, while the sum is 28.

The square root of 82711315 is about 9094.5761308595. The cubic root of 82711315 is about 435.7007510161.

The spelling of 82711315 in words is "eighty-two million, seven hundred eleven thousand, three hundred fifteen".