82730812 has 12 divisors (see below), whose sum is σ = 144859176. Its totient is φ = 41342480.

The previous prime is 82730783. The next prime is 82730819. The reversal of 82730812 is 21803728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82730819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4362 + ... + 13582.

It is an arithmetic number, because the mean of its divisors is an integer number (12071598).

Almost surely, 2^82730812 is an apocalyptic number.

It is an amenable number.

82730812 is a deficient number, since it is larger than the sum of its proper divisors (62128364).

82730812 is a wasteful number, since it uses less digits than its factorization.

82730812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11468 (or 11466 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 82730812 is about 9095.6479703208. The cubic root of 82730812 is about 435.7349832939.

The spelling of 82730812 in words is "eighty-two million, seven hundred thirty thousand, eight hundred twelve".