82641274 has 8 divisors (see below), whose sum is σ = 125455680. Its totient is φ = 40822716.

The previous prime is 82641263. The next prime is 82641289. The reversal of 82641274 is 47214628.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 248754 + ... + 249085.

It is an arithmetic number, because the mean of its divisors is an integer number (15681960).

Almost surely, 2^82641274 is an apocalyptic number.

82641274 is a deficient number, since it is larger than the sum of its proper divisors (42814406).

82641274 is a wasteful number, since it uses less digits than its factorization.

82641274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497924.

The product of its digits is 21504, while the sum is 34.

The square root of 82641274 is about 9090.7246135828. The cubic root of 82641274 is about 435.5777306273.

The spelling of 82641274 in words is "eighty-two million, six hundred forty-one thousand, two hundred seventy-four".