82081395 has 48 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 39274560.

The previous prime is 82081393. The next prime is 82081399. The reversal of 82081395 is 59318028.

It is not a de Polignac number, because 82081395 - 2¹ = 82081393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82081393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38056 + ... + 40154.

It is an arithmetic number, because the mean of its divisors is an integer number (3276000).

Almost surely, 2^82081395 is an apocalyptic number.

82081395 is a deficient number, since it is larger than the sum of its proper divisors (75166605).

82081395 is a wasteful number, since it uses less digits than its factorization.

82081395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 82081395 is about 9059.8783104410. The cubic root of 82081395 is about 434.5918486304.

It can be divided in two parts, 820 and 81395, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 82081395 in words is "eighty-two million, eighty-one thousand, three hundred ninety-five".