82665395 has 4 divisors (see below), whose sum is σ = 99198480. Its totient is φ = 66132312.

The previous prime is 82665391. The next prime is 82665397. The reversal of 82665395 is 59356628.

It is a happy number.

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 82665395 - 2² = 82665391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82665391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8266535 + ... + 8266544.

It is an arithmetic number, because the mean of its divisors is an integer number (24799620).

Almost surely, 2^82665395 is an apocalyptic number.

82665395 is a deficient number, since it is larger than the sum of its proper divisors (16533085).

82665395 is a wasteful number, since it uses less digits than its factorization.

82665395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16533084.

The product of its digits is 388800, while the sum is 44.

The square root of 82665395 is about 9092.0511987120. The cubic root of 82665395 is about 435.6201047255.

The spelling of 82665395 in words is "eighty-two million, six hundred sixty-five thousand, three hundred ninety-five".