82866195 has 24 divisors (see below), whose sum is σ = 148590000. Its totient is φ = 42670656.

The previous prime is 82866191. The next prime is 82866197. The reversal of 82866195 is 59166828.

82866195 is a `hidden beast` number, since 8 + 28 + 6 + 619 + 5 = 666.

It is not a de Polignac number, because 82866195 - 2² = 82866191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 82866195.

It is not an unprimeable number, because it can be changed into a prime (82866191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30445 + ... + 33054.

It is an arithmetic number, because the mean of its divisors is an integer number (6191250).

Almost surely, 2^82866195 is an apocalyptic number.

82866195 is a deficient number, since it is larger than the sum of its proper divisors (65723805).

82866195 is a wasteful number, since it uses less digits than its factorization.

82866195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63539 (or 63536 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 82866195 is about 9103.0871137214. The cubic root of 82866195 is about 435.9725367069.

The spelling of 82866195 in words is "eighty-two million, eight hundred sixty-six thousand, one hundred ninety-five".