82081875 has 20 divisors (see below), whose sum is σ = 136762472. Its totient is φ = 43776000.

The previous prime is 82081859. The next prime is 82081891. The reversal of 82081875 is 57818028.

It is an interprime number because it is at equal distance from previous prime (82081859) and next prime (82081891).

It is not a de Polignac number, because 82081875 - 2⁴ = 82081859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20014 + ... + 23763.

Almost surely, 2^82081875 is an apocalyptic number.

82081875 is a deficient number, since it is larger than the sum of its proper divisors (54680597).

82081875 is an equidigital number, since it uses as much as digits as its factorization.

82081875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43800 (or 43785 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 82081875 is about 9059.9048008243. The cubic root of 82081875 is about 434.5926957719.

The spelling of 82081875 in words is "eighty-two million, eighty-one thousand, eight hundred seventy-five".