82650865 has 24 divisors (see below), whose sum is σ = 110698560. Its totient is φ = 59183520.

The previous prime is 82650851. The next prime is 82650871. The reversal of 82650865 is 56805628.

It is not a de Polignac number, because 82650865 - 2⁵ = 82650833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39516 + ... + 41554.

It is an arithmetic number, because the mean of its divisors is an integer number (4612440).

Almost surely, 2^82650865 is an apocalyptic number.

It is an amenable number.

82650865 is a deficient number, since it is larger than the sum of its proper divisors (28047695).

82650865 is a wasteful number, since it uses less digits than its factorization.

82650865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133 (or 2122 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 82650865 is about 9091.2521139830. The cubic root of 82650865 is about 435.5945804176.

The spelling of 82650865 in words is "eighty-two million, six hundred fifty thousand, eight hundred sixty-five".