82665897 has 8 divisors (see below), whose sum is σ = 110641344. Its totient is φ = 54900528.

The previous prime is 82665889. The next prime is 82665899. The reversal of 82665897 is 79856628.

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

It is not a de Polignac number, because 82665897 - 2³ = 82665889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82665899) 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, 51598 + ... + 53175.

It is an arithmetic number, because the mean of its divisors is an integer number (13830168).

Almost surely, 2^82665897 is an apocalyptic number.

It is an amenable number.

82665897 is a deficient number, since it is larger than the sum of its proper divisors (27975447).

82665897 is a wasteful number, since it uses less digits than its factorization.

82665897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105039.

The product of its digits is 1451520, while the sum is 51.

The square root of 82665897 is about 9092.0788052018. The cubic root of 82665897 is about 435.6209865167.

The spelling of 82665897 in words is "eighty-two million, six hundred sixty-five thousand, eight hundred ninety-seven".