82705274 has 8 divisors (see below), whose sum is σ = 128335860. Its totient is φ = 39926656.

The previous prime is 82705261. The next prime is 82705279. The reversal of 82705274 is 47250728.

It can be written as a sum of positive squares in 2 ways, for example, as 72369049 + 10336225 = 8507^2 + 3215^2 .

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

It is not an unprimeable number, because it can be changed into a prime (82705279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712919 + ... + 713034.

Almost surely, 2^82705274 is an apocalyptic number.

82705274 is a deficient number, since it is larger than the sum of its proper divisors (45630586).

82705274 is a wasteful number, since it uses less digits than its factorization.

82705274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425984.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 82705274 is about 9094.2440037641. The cubic root of 82705274 is about 435.6901433085.

The spelling of 82705274 in words is "eighty-two million, seven hundred five thousand, two hundred seventy-four".