82817841 has 8 divisors (see below), whose sum is σ = 110598624. Its totient is φ = 55124480.

The previous prime is 82817821. The next prime is 82817849. The reversal of 82817841 is 14871828.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82817841 - 2¹⁴ = 82801457 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82817841.

It is not an unprimeable number, because it can be changed into a prime (82817849) 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, 19611 + ... + 23456.

It is an arithmetic number, because the mean of its divisors is an integer number (13824828).

Almost surely, 2^82817841 is an apocalyptic number.

It is an amenable number.

82817841 is a deficient number, since it is larger than the sum of its proper divisors (27780783).

82817841 is a wasteful number, since it uses less digits than its factorization.

82817841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43711.

The product of its digits is 28672, while the sum is 39.

The square root of 82817841 is about 9100.4308139780. The cubic root of 82817841 is about 435.8877207866.

The spelling of 82817841 in words is "eighty-two million, eight hundred seventeen thousand, eight hundred forty-one".