82347856 has 10 divisors (see below), whose sum is σ = 159549002. Its totient is φ = 41173920.

The previous prime is 82347833. The next prime is 82347877. The reversal of 82347856 is 65874328.

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 11451456 = 8420^2 + 3384^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2573355 + ... + 2573386.

Almost surely, 2^82347856 is an apocalyptic number.

It is an amenable number.

82347856 is a deficient number, since it is larger than the sum of its proper divisors (77201146).

82347856 is a wasteful number, since it uses less digits than its factorization.

82347856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146749 (or 5146743 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 82347856 is about 9074.5719458275. The cubic root of 82347856 is about 435.0616127992.

The spelling of 82347856 in words is "eighty-two million, three hundred forty-seven thousand, eight hundred fifty-six".